Flora distribution maps of North America

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References

[edit]

These North American tree distribution maps are based primarily on the following sources, indicated in the "Mapmaker" column.

Mapmaker Original reference
Munns (1938) E. N. Munns (1938), The distribution of important forest trees of the United States
U.S. Department of Agriculture Miscellaneous Publication 287, pp. 1-170.
Critchfield &
Little (1966) 		William B Critchfield & Elbert L. Little, Jr. (1966), Geographic distribution of the pines of the world:
U.S. Department of Agriculture Miscellaneous Publication 991, pp. 1-97.
Little (1971) Elbert L. Little, Jr. (1971), Atlas of United States trees, Vol. 1, conifers and important hardwoods:
U.S. Department of Agriculture Miscellaneous Publication 1146, 9 p., 200 maps.
Little (1976) Elbert L. Little, Jr. (1976), Atlas of United States trees, Vol. 3, minor Western hardwoods:
U.S. Department of Agriculture Miscellaneous Publication 1314, 13 p., 290 maps.
Little (1977) Elbert L. Little, Jr. (1977), Atlas of United States trees, Vol. 4, minor Eastern hardwoods:
U.S. Department of Agriculture Miscellaneous Publication 1342, 17 p., 230 maps.
Little (1978) Elbert L. Little, Jr. (1978), Atlas of United States trees, Vol. 5, Florida:
U.S. Department of Agriculture Miscellaneous Publication 1361, 262 maps.
Little (1981) Elbert L. Little, Jr. (1981), Atlas of United States trees, Vol. 6, Supplement:
U.S. Department of Agriculture Miscellaneous Publication 1410, 31 p., 39 maps.

Digitized copies of these maps are available at USGS Geosciences and Environmental Change Science Center, Digital Representations of Tree Species Range Maps from "Atlas of United States Trees" by Elbert L. Little, Jr. (and other publications) archive copy at the Wayback Machine. The PDF files available there show a striping problem when opened with and exported from Adobe Arobat, which makes them undesirable for use as Wikipedia illustrations unless they are cleaned up. However, if the PDF files are opened and rasterized directly in Photoshop (CS6 anyway), the striping problem does not occur.


Pinus

[edit]

Subgenus Strobus

[edit]

White pines, soft pines.

Latin Name English Name Source 1971 1 2 3 4 1966 1938
Pinus albicaulis whitebark pine,
pine à blanche écorce 		Little (1971) 5  5 
Pinus monticola western white pine Little (1971) 6 2
Pinus strobus eastern white pine Little (1971) 1
Pinus chiapensis
≈ P. strobus chiapensis 		Chiapas pine[1] Little (1971)
Pinus lambertiana sugar pine Little (1971) 7 3
Pinus flexilis limber pine Little (1971) 8 4
Pinus strobiformis southwestern white pine,
Chihuahua white pine 		Little (1971) 6
Pinus ayacahuite Mexican white pine Critchfield &
Little (1966) 		9
  1. ↑ Little et al. included the Pinus chiapensis populations (in Mexico) as part of Pinus strobus. See [1].

Subgenus Ducampopinus

[edit]

Pinyon pines, lacebark pines, foxtail pines.

Section Parrya

[edit]
Subsect. Cembroides
[edit]

Pinyon pines.

Latin Name English Name Source 0 1 2 3 1966 1938
Pinus cembroides Mexican piñon Little (1971) 15 7
Pinus maximartinezii Martinez pinyon Critchfield &
Little (1966)
Pinus discolor
≈ P. cembroides bicolor
≈ P. culminicola discolor 		border pinyon,
piñón de la frontera
Pinus johannis Johann's piñon
Pinus orizabensis
≈ P. cembroides orizabensis
≈ P. cembroides non Zucc. 		Orizaba pinyon
Pinus remota
≈ P. cembroides remota
≈ P. catarinae 		Texas pinyon,
papershell pinyon
Pinus quadrifolia Parry pinyon Little (1971) 16
Pinus monophylla singleleaf pinyon Little (1971) 9
Pinus monophylla
ssp. monophylla
Pinus monophylla
ssp. californiarum
 17
Pinus monophylla
ssp. fallax
Pinus edulis Colorado pinyon Little (1971) 8
Pinus culminicola Potosi pinyon Critchfield &
Little (1966) 		18
Pinus pinceana Pince pinyon Critchfield &
Little (1966)
Pinus nelsonii Nelson pinyon Critchfield &
Little (1966)
Subsect. Balfourianae
[edit]

Foxtail pines, southwest U. S.

Latin Name English Name Source 1971 1971-1 1971-2 1966 1938
Pinus balfouriana foxtail pine Little (1971) 20 10
Pinus aristata Rocky Mountain bristlecone pine Little (1971) 21 11
Pinus longaeva Great Basin bristlecone pine Bailey (1970)
Little (1971)

Subgenus Pinus

[edit]

Yellow pines, hard pines.

Subsect. Leiophyllae
[edit]
Latin Name English Name Source 0 1 2 others
Pinus leiophylla Chihuahua pine Little (1971),
Critchfield &
Little (1966) 		22
Pinus lumholtzii Lumholtz pine Critchfield &
Little (1966) 		23

Section Pinus

[edit]

Mostly Eurasian hard pines, except for these.

Latin Name English Name Source 0 1 2 1966 1938
Pinus resinosa red pine Little (1971) 26
 12
Pinus tropicalis tropical pine Critchfield &
Little (1966)

Section Trifoliae

[edit]

American hard pines.

Subsect. Australes
[edit]
Latin Name English Name Source 0 1 2 1966 1938
Pinus palustris longleaf pine Little (1971) 40 25 
Pinus taeda loblolly pine Little (1971) 41  18 
Pinus echinata shortleaf pine Little (1971) 42 22
Pinus pungens Table Mountain pine Little (1971) 43
Pinus glabra spruce pine Little (1971) 23 
Pinus rigida pitch pine Little (1971) 44
 19 
Pinus serotina pond pine Little (1971) 20 
Pinus elliottii slash pine Little (1971) 45  45  26
Pinus caribaea Caribbean pine Critchfield &
Little (1966) 		44
Pinus occidentalis West Indian pine,
Hispaniolan pine 		Critchfield &
Little (1966)
Pinus cubensis Cuban pine Critchfield &
Little (1966)
Subsect. Ponderosae
[edit]
Latin Name English Name Source 1971 1 2 1966 1938
Pinus ponderosa ponderosa pine Little (1971) 47 13
Pinus arizonica Arizona pine Little (1971)
Pinus washoensis[1] Washoe pine Little (1971) 48
14
Pinus jeffreyi Jeffrey pine Little (1971)
Pinus engelmannii Apache pine Little (1971) 49 
Pinus montezumae Montezuma pine Critchfield &
Little (1966)
Pinus durangensis Durango pine Critchfield &
Little (1966) 		50 
Pinus michoacana Michoacan pine,
Pino michoacano 		Critchfield &
Little (1966)
Pinus hartwegii Hartweg pine Critchfield &
Little (1966) 		51 
Pinus cooperi Cooper pine Critchfield &
Little (1966)
Pinus pseudostrobus False Weymouth pine Critchfield &
Little (1966) 		52 
Pinus douglasiana Douglas pine Critchfield &
Little (1966)
Pinus teocote Twisted leaves pine;
Aztec pine 		Critchfield &
Little (1966) 		53 
Pinus lawsonii Lawson pine Critchfield &
Little (1966)
Pinus sabiniana Foothill pine Little (1971) 54  16 
Pinus torreyana Torrey pine Little (1971) 55 
Pinus coulteri Coulter pine Little (1971) 17 
  1. ↑ Pinus washoensis is now considered to be a synonym of Pinus ponderosa subsp. ponderosa
Subsect. Contortae
[edit]
Latin Name English Name Source 0 1 2 1966 1938
Pinus banksiana jack pine Little (1971) 56
 24 
Pinus contorta lodgepole pine Little (1971) 15 
Pinus virginiana Virginia pine Little (1971) 57
 21 
Pinus clausa sand pine Little (1971)
Subsect. Oocarpae
[edit]
Latin Name English Name Source 0 1 2 original
Pinus attenuata knobcone pine Little (1971) 58
Pinus radiata Monterey pine Little (1971) 58
Pinus muricata bishop pine Little (1971) 59
Pinus greggii[1] Gregg pine Critchfield &
Little (1966) 		60
Pinus patula[1] Mexican weeping pine Critchfield &
Little (1966)
Pinus tecunumanii[2] archive copy at the Wayback Machine
≈ P. oocarpa ochoterenae
≈ P. patula tecunumanii 		Schwerdtfeger's pine,
Tecun Uman pine
Pinus pringlei Pringle pine Critchfield &
Little (1966) 		61
Pinus oocarpa Nicaraguan pitch pine;
ocote pine 		Critchfield &
Little (1966)
  1. ↑ a b The Pinus greggii and Pinus patula range maps are switched at USGS website, but they have been corrected here.

Larix

Latin Name English Name Source 1971 1 2 3 4 5 1966
Larix laricina tamarack Little (1971) 27 
Larix occidentalis western larch Little (1971) 28 
Larix lyallii subalpine larch Little (1971)

Picea

Latin Name English Name Mapmaker 1971 1 2 3 4 5 1938
Picea mariana black spruce Little (1971) 29 
Picea rubens red spruce Little (1971) 30 
Picea glauca white spruce Little (1971) 31 
Picea engelmannii Engelmann spruce Little (1971) 32 
Picea pungens blue spruce Little (1971) 33 
Picea sitchensis Sitka spruce Little (1971) 34 
Picea breweriana Brewer spruce Little (1971)
Picea chihuahuana Chihuahua spruce Gordon (1968)[1]
Picea martinezii Martinez spruce Gordon (1968)
  1. ↑ Gordon, A. G. 1968. Ecology of Picea chihuahuana Martinez. Ecology 49: 880-896.

Tsuga

Latin Name English Name Source 1971 1 2 3 4 5 6 1938
Tsuga canadensis eastern hemlock Little (1971)
Tsuga caroliniana Carolina hemlock Little (1971)
Tsuga heterophylla western hemlock Little (1971)
Tsuga mertensiana mountain hemlock Little (1971)

Pseudotsuga

[edit]
Latin Name English Name Mapmaker 1971 1 1938
Pseudotsuga macrocarpa bigcone Douglas fir Little (1971)
Munns (1938)
Pseudotsuga menziesii Douglas fir Little (1971)

Abies

Latin Name English Name Source 1971 1 2 3/4 5 1938
Abies amabilis Pacific silver fir Little (1971) 1
Abies balsamea balsam fir Little (1971)
Munns (1938) 40
Abies fraseri Fraser fir Little (1971)
Abies bracteata bristlecone fir Little (1971)
Abies concolor white fir Little (1971)
Abies grandis grand fir Little (1971)
Abies lasiocarpa subalpine fir Little (1971)
Abies magnifica California red fir Little (1971)
Abies procera noble fir Little (1971)

Acacia

Latin Name English Name Mapmaker 0 1 2 Original maps
Acacia berlandieri Berlandier acacia Little (1976)
Acacia greggii greggii
 ≈ Senegalia greggii 		catclaw acacia Little (1976)
Acacia greggii wrightii
 ≈ Acacia wrightii
 ≈ Senegalia wrightii 		Wright acacia Little (1976)
Acacia rigidula blackbrush acacia Little (1976)
Acacia roemeriana Roemer acacia Little (1976)
Acacia tortuosa twisted acacia Little (1976)

The following Acacia species appearing in Little (1976 & 1978) are now often segregated into the genus Vachellia Wight & Arn. (Phytologia 87:160. 2006).

Latin Name English Name Mapmaker 0 1 2 Original maps
Acacia choriophylla
 = Vachellia choriophylla 		cinnecord Little (1978)
Acacia farnesiana
 = Vachellia farnesiana 		sweet acacia Little (1976)
Acacia macracantha
 = Vachellia macracantha 		long spine acacia Little (1978)

Acer

Latin Name English Name Mapmaker 0 1 2 3 4
Acer negundo boxelder Little (1971)
Acer nigrum black maple Little (1971)
Acer rubrum red maple Little (1971)
Acer saccharinum silver maple Little (1971)
Acer saccharum sugar maple Little (1971)
Acer barbatum (auct.)
 = Acer floridanum 		southern sugar maple Little (1977)
Acer leucoderme chalk maple Little (1977)
Acer pensylvanicum striped maple Little (1977)
Acer spicatum mountain maple Little (1977)
Acer macrophyllum bigleaf maple Little (1971)
Acer circinatum vine maple Little (1976)
Acer glabrum Rocky Mountain maple Little (1976)
Acer grandidentatum bigtooth maple Little (1976)

Acoelorrhaphe

These Acoelorrhaphe maps may be misleading because they only show the U.S. population, which is restricted to extreme southern Florida. Other sources inticate that the range of the monospecific Acoelorrhaphe includes parts of Central America.

Latin Name English Name Mapmaker 0 1 2 Original
Acoelorrhaphe wrightii paurotis palm Little (1978)

Aesculus

Latin Name English Name Mapmaker 0 1 2
Aesculus glabra Ohio buckeye Little (1971)
Aesculus octandra
  = Aesculus flava 		yellow buckeye Little (1971)
Aesculus parviflora bottlebrush buckeye Little (1977)
Aesculus pavia red buckeye Little (1977)
Aesculus sylvatica painted buckeye Little (1977)
Aesculus californica California buckeye Little (1976)

Agave

Latin Name English Name Mapmaker 0 1 2
Agave utahensis Utah agave Benson &
Darrow (1981)

Alnus

Latin Name English Name Mapmaker 0 1 2
Alnus maritima seaside alder Little (1977)
Alnus serrulata hazel alder Little (1977)
Alnus incana subspp. speckled alder,
& thinleaf alder 		Little (1977)
Alnus rugosa
 = A. incana ssp. rugosa 		speckled alder Little (1977)
Alnus tenuifolia
 = A. incana ssp. tenuifolia 		thinleaf alder Little (1976)
Alnus oblongifolia Arizona alder Little (1976)
Alnus rhombifolia white alder Little (1976)
Alnus sinuata
 = Alnus viridis ssp. sinuata 		Sitka alder Little (1976)
Alnus rubra red alder Little (1971)

Alvaradoa

Latin Name English Name Mapmaker 0 1 2
Alvaradoa amorphoides Mexican alvaradoa Little (1978)

Amelanchier

Latin Name English Name Mapmaker 0 1 2
Amelanchier arborea downy serviceberry Little (1977)
Amelanchier interior inland serviceberry Little (1977)
Amelanchier sanguinea roundleaf serviceberry Little (1977)
Amelanchier alnifolia western serviceberry Little (1976)
Amelanchier utahensis Utah serviceberry Little (1976)

Amphitecna

Latin Name English Name Mapmaker 0 1 2
Amphitecna latifolia black calabash Little (1978)

Amyris

Latin Name English Name Mapmaker png0 png1 svg
Amyris balsamifera balsam torchwood Little (1978)
Amyris elemifera sea torchwood,
smooth torchwood 		Little (1978)

Annona

Latin Name English Name Mapmaker png0 png1 svg
Annona glabra pond apple Little (1978)

Aralia

Latin Name English Name Mapmaker png0 png1 svg
Aralia spinosa devils walkingstick Little (1977)

Arbutus

Latin Name English Name Mapmaker png0 png1 svg
Arbutus arizonica Arizona madrone Little (1976)
Arbutus menziesii Pacific madrone Little (1971)
Arbutus texana Texas madrone Little (1976)

Arctostaphylos

Latin Name English Name Mapmaker png0 png1 svg
Arctostaphylos pringlei Pringle manzanita Little (1976)

Ardisia

Latin Name English Name Mapmaker png0 png1 svg
Ardisia escallonioides marlberry Little (1978)

Artemisia

Latin Name English Name Mapmaker png0 png1 svg
Artemisia tridentata big sagebrush Little (1976)

Asimina

Latin Name English Name Mapmaker png0 png1 svg
Asimina parviflora smallflower pawpaw Little (1978)
Asimina triloba pawpaw Little (1977)

Avicennia

Latin Name English Name Mapmaker png0 png1 svg others
Avicennia germinans black mangrove Little (1977,78)

Baccharis

Latin Name English Name Mapmaker 0 1 2 3
Baccharis halimifolia eastern baccharis Little (1977)

Betula

Latin Name English Name Mapmaker png0 png1 png2 svg
Betula alleghaniensis yellow birch Little (1971)
Betula lenta sweet birch Little (1971)
Betula nana dwarf birch Little (1975)
Betula neoalaskana Alaska birch Little (1975)
Betula nigra river birch Little (1971)
Betula occidentalis water birch Little (1976)
Betula papyrifera paper birch Little (1971)
Betula populifolia gray birch Little (1971)
Betula uber Ashe birch,
Virginia roundleaf birch 		Little (1977)

Bourreria

Note that the Little (1978) source only includes maps of Florida. These plants may occur naturally in other North American locations. The USDA-NRCS Plants database shows them both as also native to Puerto Rico.

Latin Name English Name Mapmaker 0 1 2 3 4
Bourreria ovata
= Bourreria succulenta[3] 		Bahama strongbark Little (1978)
Bourreria radula rough strongbark Little (1978) Page 170 not available in copy of Little'78. Atlas of Florida Vascular Plants shows Bourreria radula all along the Keys. USDA-NRCS shows it also in Puerto Rico.

Sideroxylon (Bumelia)

Latin Name English Name Mapmaker 0 1 2 3
Bumelia celastrina
 = Sideroxylon celastrinum 		saffron plum Little (1976,78)
Bumelia lanuginosa
 = Sideroxylon lanuginosum 		gum bumelia Little (1976,77)
Bumelia lycioides
 = Sideroxylon lycioides 		buckthorn bumelia Little (1977)
Bumelia tenax
 = Sideroxylon tenax 		tough bumelia,
tough bully,
tough buckthorn 		Little (1977)

Bursera

Latin Name English Name Mapmaker 0 1 2 3
Bursera fagaroides fragrant bursera Little (1976)
Bursera microphylla elephanttree Little (1976)
Bursera simaruba gumbo limbo Little (1978)

Byrsonima

Latin Name English Name Mapmaker 0 1 2 3 4
Byrsonima lucida long key locustberry Little (1978)

Caesalpinia

Latin Name English Name Mapmaker 0 1 2 3 4
Caesalpinia mexicana Mexican poinciana Little (1976)

Calyptranthes

Latin Name English Name Mapmaker 0 1 2 3 4
Calyptranthes pallens pale lidflower Little (1978)
Calyptranthes zuzygium myrtle of the river Little (1978)

Canella

Latin Name English Name Mapmaker 0 1 2 3
Canella winterana canella Little (1978)

Canotia

Latin Name English Name Mapmaker 0 1 2 3
Canotia holacantha canotia,
crucifixion thorn 		Little (1976)

Capparis

Latin Name English Name Mapmaker 0 1 2 3
Capparis cynophallophora Jamaica caper Little (1978)
Capparis flexuosa limber caper Little (1978)

Carpinus

Latin Name English Name Mapmaker 0 1 2 3 1938
Carpinus caroliniana American hornbeam Little (1971)

Carya

Latin Name English Name Mapmaker 1971 1 2 1938
Carya aquatica water hickory Little (1971)
Carya cordiformis bitternut hickory Little (1971)
Carya glabra
(=) Hicoria glabra
 pignut hickory Little (1971)
Carya illinoensis pecan Little (1971)
Carya laciniosa
(=) Hicoria laciniosa
 shellbark hickory Little (1971)
Carya myristicaeformis nutmeg hickory Little (1971)
Carya ovata shagbark hickory Little (1971)
Carya tomentosa mockernut hickory Little (1971)
Latin Name English Name Mapmaker 1977 1 2 1938
Carya floridana scrub hickory Little (1977)
Carya pallida sand hickory Little (1977)
Carya texana black hickory Little (1977)

Castanea

Latin Name English Name Mapmaker 1977 1 2 3 4 1938
Castanea dentata American chestnut Little (1977)
Castanea ozarkensis Ozark chinkapin Little (1977)
Castanea pumila Allegheny chinkapin Little (1977)
Munns (1938)
Castanea alnifolia
= Castanea pumila 		Florida chinkapin Little (1977)
Latin Name English Name Mapmaker 1971 1 2 3 4 1938
Castanopsis chrysophylla
= Chrysolepis chrysophylla 		golden chinkapin Little (1971)

Catalpa

Latin Name English Name Mapmaker 0 1 2 3
Catalpa bignonioides southern catalpa Little (1977)
Catalpa speciosa northern catalpa Little (1971)

Ceanothus

Latin Name English Name Mapmaker 0 1 2 3 4
Ceanothus arboreus feltleaf ceanothus Little (1976)
Ceanothus spinosus spiny ceanothus Little (1976)
Ceanothus thyrsiflorus blueblossom Little (1976)

Celtis

Latin Name English Name Mapmaker 0 1 2 3 4 5
Celtis laevigata sugarberry,
southern hackberry 		Little (1971)
Celtis occidentalis common hackberry,
northern hackberry 		Little (1971)
Celtis tenuifolia Georgia hackberry Little (1977)
Celtis lindheimeri Lindheimer hackberry Little (1976)
Celtis reticulata netleaf hackberry Little (1976)

Cephalanthus

Latin Name English Name Mapmaker 0 1 2
Cephalanthus occidentalis common buttonbush Little (1976,77)

Cercis

Latin Name English Name Mapmaker 0 1 2 3 4
Cercis canadensis eastern redbud Little (1976,77)
Cercis occidentalis California redbud,
western redbud 		Little (1976)

Cercocarpus

Latin Name English Name Mapmaker 0 1 2 3
Cercocarpus betuloides birchleaf cercocarpus Little (1976)
Cercocarpus breviflorus hairy cercocarpus Little (1976)
Cercocarpus ledifolius curlleaf cercocarpus Little (1976)
Cercocarpus traskiae Catalina cercocarpus Little (1976)

Cereus

Latin Name English Name Mapmaker 0 1 2 3 4
Cereus giganteus
= Carnegiea gigantea 		saguaro Little (1976)
Cereus robinii key tree cactus Little (1978)

Chamaecyparis

Latin Name English Name Mapmaker 0 1 2 3
Chamaecyparis lawsoniana Port Orford cedar,
Lawson's cypress 		Little (1971)
Chamaecyparis nootkatensis
= Cupressus nootkatensis 		Alaska cedar,
Nootka cypress 		Little (1971)
Chamaecyparis thyoides Atlantic white cedar Little (1971)

Chilopsis

Latin Name English Name Mapmaker 0 1 2 3
Chilopsis linearis desert willow Little (1976)

Chionanthus

Latin Name English Name Mapmaker 0 1 2 3
Chionanthus virginicus fringetree Little (1977)

Chrysobalanus

Latin Name English Name Mapmaker 0 3 2 3
Chrysobalanus icaco cocoplum Little (1978)
Map 180

Chrysophyllum

Latin Name English Name Mapmaker 0 1 2 3
Chrysophyllum oliviforme satinleaf Little (1978)

Citharexylum

Latin Name English Name Mapmaker 0 1 2 3
Citharexylum berlandieri Berlandier fiddlewood Little (1976)
Citharexylum fruticosum
= Citharexylum spinosum 		Florida fiddlewood Little (1978)

Cladrastis

Latin Name English Name Mapmaker 0 1 2 3 4
Cladrastis kentukea yellowwood Little (1977)

Clethra

Latin Name English Name Mapmaker 0 1 2 3 4 5
Clethra acuminata cinnamon clethra Little (1977)

Cliftonia

Latin Name English Name Mapmaker 0 1 2 3 4 5 6
Cliftonia monophylla buckwheat tree Little (1977)

Clusia

[edit]
Latin Name English Name Mapmaker 0 1 2
Clusia rosea Florida clusia Little (1978)

Coccothrinax

[edit]
Latin Name English Name Mapmaker 0 1 2
Coccothrinax argentata Florida silverpalm Little (1978)

Coccoloba

[edit]
Latin Name English Name Mapmaker 0 1 2
Coccoloba diversifolia pigeon plum Little (1978)
Coccoloba uvifera seagrape Little (1978)

Colubrina

[edit]
Latin Name English Name Mapmaker 0 1 2
Colubrina arborescens coffee colubrina Little (1978)
Colubrina cubensis Cuba colubrina Little (1978)
Colubrina elliptica soldierwood Little (1978)

Condalia

Latin Name English Name Mapmaker 0 1 2 3 4 5 6
Condalia globosa bitter condalia Little (1976)
Condalia hookeri bluewood Little (1976)

Conocarpus

[edit]
Latin Name English Name Mapmaker 0 1 2
Conocarpus erectus button mangrove Little (1978)

Cordia

[edit]
Latin Name English Name Mapmaker 0 1 2
Cordia boissieri anacahuita Little (1976)
Cordia sebestena Geiger tree Little (1978)

Cornus

Latin Name English Name Mapmaker 0 1
Cornus florida flowering dogwood Little (1971)
Cornus alternifolia alternate leaf dogwood Little (1977)
Cornus drummondii roughleaf dogwood Little (1977)
Cornus foemina
≈ Cornus stricta 		stiff dogwood,
swamp dogwood 		Little (1977)
Cornus racemosa gray dogwood Little (1977)
Cornus rugosa roundleaf dogwood Little (1977)
Cornus sericea sericea
≈ Cornus stolonifera 		red osier dogwood Little (1977)
Cornus sericea occidentalis
≈ Cornus occidentalis 		western dogwood Little (1976)
Cornus glabrata brown dogwood Little (1976)
Cornus nuttallii Pacific dogwood Little (1976)
Cornus sessilis blackfruit dogwood Little (1976)

Corylus

Latin Name English Name Mapmaker 0 1 2 3
Corylus cornuta beaked hazel Little (1977)

Cotinus

Latin Name English Name Mapmaker 0 1 2 3 4 5
Cotinus obovatus American smoketree Little (1977)

Cowania

[edit]
Latin Name English Name Mapmaker 0 1 2
Cowania mexicana cliffrose Little (1976)

Crataegus

Eastern Crataegus

[edit]
Latin Name English Name Mapmaker 1981
Crataegus aestivalis May hawthorn Little (1981)
Crataegus berberifolia barberry hawthorn Little (1981)
Crataegus brachyacantha blueberry hawthorn Little (1981)
Crataegus brainerdii Brainerd hawthorn Little (1981)
Crataegus calpodendron pear hawthorn Little (1981)
Crataegus coccinea scarlet hawthorn Little (1981)
Crataegus coccinioides Kansas hawthorn Little (1981)
Crataegus dilatata
= Crataegus coccinioides 		broadleaf hawthorn Little (1981)
Crataegus crus-galli cockspur hawthorn Little (1981)
Crataegus flabellata fanleaf hawthorn Little (1981)

Western & transcontinental Crataegus

[edit]
Latin Name English Name Mapmaker 0 1 2 3 1976 1981
Crataegus chrysocarpa
 var. chrysocarpa[1] 		fireberry hawthorn,
red haw 		Little (1976)
C. columbiana (auct.)
= C. chrysocarpa var. piperi 		Columbia hawthorn,
Piper's hawthorn 		Little (1976)
Crataegus douglasii black hawthorn Little (1976)
Crataegus erythropoda Cerro hawthorn Little (1976)
Crataegus saligna willow hawthorn Little (1976)
Crataegus succulenta fleshy hawthorn Little (1976)
Crataegus tracyi Tracy hawthorn Little (1976)
  1. ↑ The Crataegus chrysocarpa map only shows the southwestern part of its range and could be misleading if used as an illustration by itself. Its range actually extends as far east as Newfoundland and Maine.

Crossopetalum

[edit]
Latin Name English Name Mapmaker 0 1 2
Crossopetalum rhacoma Florida crossopetalum Little (1978)

Cupania

[edit]
Latin Name English Name Mapmaker 0 1 2
Cupania glabra Florida cupania Little (1978)

Cupressus

Latin Name English Name Mapmaker 0 1 2 3 4
Cupressus arizonica s.l. Arizona cypress Little (1971)
Cupressus arizonica s.s.
≈ C. arizonica arizonica 		Arizona cypress Little (1971)
Cupressus glabra
≈ C. arizonica glabra 		Arizona smooth-bark cypress Little (1971)
Cupressus montana
≈ C. arizonica montana
≈ Callitropsis montana 		San Pedro Martír cypress Little (1971)
Cupressus nevadensis
≈ C. arizonica nevadensis 		Piute cypress Little (1971)
Griffin (1972)
Cupressus stephensonii
≈ C. arizonica stephensonii
≈ Callitropsis stephensonii 		Cuyamaca cypress Little (1971)
Griffin (1972)
Cupressus bakeri Baker cypress,
Modoc cypress 		Little (1971)
Cupressus goveniana s.l. Gowen cypress,
Mendocino Cypress &
Santa Cruz Cypress 		Little (1971)
Cupressus goveniana s.s.
≈ C. goveniana goveniana 		Gowen cypress Griffin (1972)
Cupressus pygmaea
≈ C. goveniana pygmaea 		Mendocino Cypress Griffin (1972)
Cupressus abramsiana
≈ C. goveniana abramsiana 		Santa Cruz Cypress Griffin (1972)
Cupressus guadalupensis
≈ Callitropsis guadalupensis 		Guadalupe cypress, Tecate cypress Little (1971)
Cupressus forbesii
≈ C. guadalupensis forbesii
≈ Callitropsis forbesii 		Forbes' cypress
Tecate cypress 		Griffin (1972)
Cupressus macnabiana MacNab cypress,
Shasta cypress 		Little (1971)
Cupressus macrocarpa Monterey cypress Little (1971)
Cupressus sargentii Sargent cypress Little (1971)
Cupressus nootkatensis Nootka cypress Little (1971)

Cyrilla

[edit]
Latin Name English Name Mapmaker 0 1 2
Cyrilla racemiflora swamp cyrilla Little (1977)

Dalea

[edit]
Latin Name English Name Mapmaker 0 1 2
Dalea spinosa smokethorn Little (1976)

Diospyros

[edit]
Latin Name English Name Mapmaker 0 1 2
Diospyros texana Texas persimmon Little (1976)
Diospyros virginiana common persimmon Little (1971)

Dipholis

[edit]
Latin Name English Name Mapmaker 0 1 2
Dipholis salicifolia willow bustic Little (1978)

Dodonaea

[edit]
Latin Name English Name Mapmaker 0 1 2
Dodonaea viscosa hopbush Little (1976,78)

Drypetes

[edit]
Latin Name English Name Mapmaker 0 1 2
Drypetes diversifolia milkbark Little (1978)
Drypetes lateriflora Guiana plum Little (1978)

Ehretia

[edit]
Latin Name English Name Mapmaker 0 1 2
Ehretia anacua anaqua Little (1976)

Elliottia

[edit]
Latin Name English Name Mapmaker 0 1 2
Elliottia racemosa elliottia Little (1977)

Erythrina

[edit]
Latin Name English Name Mapmaker 0 1 2
Erythrina flabelliformis southwestern coralbean Little (1976)
Erythrina herbacea eastern coralbean Little (1977)

Esenbeckia

[edit]
Latin Name English Name Mapmaker 0 1 2
Esenbeckia berlandieri Berlandier esenbeckia Little (1976)

Eugenia

[edit]
Latin Name English Name Mapmaker 0 1 2
Eugenia axillaris white stopper Little (1978)
Eugenia confusa redberry stopper Little (1978)
Eugenia foetida boxleaf stopper Little (1978)
Eugenia rhombea red stopper Little (1978)

Euonymus

[edit]
Latin Name English Name Mapmaker 0 1 2
Euonymus atropurpureus eastern wahoo Little (1977)
Euonymus occidentalis western wahoo Little (1976)

Exostema

[edit]
Latin Name English Name Mapmaker 0 1 2
Exostema caribaeum princewood Little (1978)

Exothea

[edit]
Latin Name English Name Mapmaker 0 1 2
Exothea paniculata inkwood Little (1978)

Eysenhardtia

[edit]
Latin Name English Name Mapmaker 0 1 2
Eysenhardtia polystachya kidneywood Little (1976)
Eysenhardtia texana Texas kidneywood Little (1976)

Fagus

Latin Name English Name Mapmaker 0 1 2 3 4
Fagus grandifolia American beech Little (1971)
Fagus grandifolia
 subsp. mexicana 		Mexican beech Little (1971)

Ficus

[edit]
Latin Name English Name Mapmaker 0 1 2
Ficus aurea Florida strangler fig Little (1978)
Ficus citrifolia shortleaf fig Little (1978)

Forestiera

[edit]
Latin Name English Name Mapmaker 0 1 2
Forestiera acuminata swamp privet Little (1977)
Forestiera angustifolia Texas forestiera Little (1976)
Forestiera phillyreoides desert olive forestiera Little (1976)
Forestiera segregata Florida privet Little (1977)

Franklinia

[edit]
Latin Name English Name Mapmaker 0 1 2
Franklinia alatamaha franklinia Little (1977)

Fraxinus

Latin Name English Name Mapmaker 0 1 2 3 4 5
Fraxinus americana white ash Little (1971)
Fraxinus pennsylvanica green ash Little (1971)
Fraxinus latifolia Oregon ash Little (1971)
Fraxinus nigra black ash Little (1971)
Fraxinus quadrangulata blue ash Little (1971)
Munns (1938)
Fraxinus caroliniana Carolina ash Little (1977)
Fraxinus profunda pumpkin ash Little (1977)
Fraxinus anomala singleleaf ash Little (1976)
Fraxinus berlandieriana Berlandier ash,
Mexican ash 		Little (1976)
Fraxinus cuspidata fragrant ash Little (1976)
Fraxinus dipetala two petal ash Little (1976)
Fraxinus gooddingii Goodding ash Little (1976)
Fraxinus greggii Gregg ash Little (1976)
Fraxinus papillosa Chihuahua ash Little (1976)
Fraxinus texensis Texas ash Little (1976)
Fraxinus velutina velvet ash Little (1976)

Fremontodendron

[edit]
Latin Name English Name Mapmaker 0 1 2
Fremontodendron californicum California fremontia Little (1976)
Fremontodendron mexicanum Mexican fremontia Little (1976)

Garrya

[edit]
Latin Name English Name Mapmaker 0 1 2
Garrya elliptica wavyleaf silktassel Little (1976)

Genipa

[edit]
Latin Name English Name Mapmaker 0 1 2
Genipa clusiifolia seven year apple Little (1978)

Gleditsia

[edit]
Latin Name English Name Mapmaker 1977 1971 1938
Gleditsia aquatica waterlocust Little (1977)
Gleditsia triacanthos honeylocust Little (1971)

Gordonia

[edit]
Latin Name English Name Mapmaker 0 1 2
Gordonia lasianthus loblolly bay Little (1977)

Guaiacum

[edit]
Latin Name English Name Mapmaker 0 1 2
Guaiacum angustifolium Texas lignumvitae Little (1976)
Guaiacum sanctum roughbark lignumvitae Little (1978)

Guapira

[edit]
Latin Name English Name Mapmaker 0 1 2
Guapira discolor blolly Little (1978)

Guettarda

[edit]
Latin Name English Name Mapmaker 0 1 2
Guettarda elliptica elliptic leaf velvetseed Little (1978)
Guettarda scabra roughleaf velvetseed Little (1978)

Gyminda

[edit]
Latin Name English Name Mapmaker 0 1 2
Gyminda latifolia falsebox Little (1978)

Gymnocladus

[edit]
Latin Name English Name Mapmaker 0 1 2
Gymnocladus dioicus Kentucky coffeetree Little (1977)

Gymnanthes

[edit]
Latin Name English Name Mapmaker 0 1 2
Gymnanthes lucida oysterwood Little (1978)

Halesia

[edit]
Latin Name English Name Mapmaker 0 1 2
Halesia carolina Carolina silverbell Little (1977)
Halesia diptera two wing silverbell Little (1977)
Halesia parviflora little silverbell Little (1977)

Hamamelis

[edit]
Latin Name English Name Mapmaker 1977 1 1938
Hamamelis virginiana witch hazel Little (1977)

Hamelia

[edit]
Latin Name English Name Mapmaker 0 1 2
Hamelia patens scarletbush Little (1978)

Helietta

[edit]
Latin Name English Name Mapmaker 0 1 2
Helietta parvifolia barreta Little (1976)

Hippomane

[edit]
Latin Name English Name Mapmaker 0 1 2
Hippomane mancinella manchineel Little (1978)

Holacantha

[edit]
Latin Name English Name Mapmaker 0 1 2
Holacantha emoryi holacantha Little (1976)

Hypelate

[edit]
Latin Name English Name Mapmaker 0 1 2
Hypelate trifoliata hypelate Little (1978)

Ilex

Latin Name English Name Mapmaker 0 1 2 3 4
Ilex opaca American holly Little (1971)
Ilex ambigua Carolina holly Little (1977)
Ilex amelanchier sarvis holly Little (1977)
Ilex cassine dahoon Little (1977)
Ilex coriacea large gallberry Little (1977)
Ilex decidua possumhaw Little (1977)
Ilex laevigata smooth winterberry Little (1977)
Ilex montana mountain winterberry Little (1977)
Ilex myrtifolia myrtle dahoon Little (1977)
Ilex verticillata common winterberry Little (1977)
Ilex vomitoria yaupon Little (1977)
Ilex krugiana tawnyberry holly Little (1978)
Ilex longipes Georgia holly Little (1978)

Illicium

[edit]
Latin Name English Name Mapmaker 0 1 2
Illicium floridanum Florida anise tree Little (1977)
Illicium parviflorum yellow anise tree Little (1977)

Jacquinia

[edit]
Latin Name English Name Mapmaker 0 1 2
Jacquinia keyensis joewood Little (1978)

Juglans

Latin Name English Name Mapmaker 0 1 2
Juglans californica California walnut Little (1976)
Juglans cinerea butternut Little (1971)
Juglans hindsii Hinds walnut Little (1976)
Juglans major Arizona walnut Little (1976)
Juglans microcarpa little walnut Little (1976)
Juglans nigra black walnut Little (1971)

Juniperus

Latin Name English Name Mapmaker 0 1 2 3 4
Juniperus communis common juniper Little (1971)
Juniperus horizontalis creeping juniper Little (1971)
Juniperus virginiana redcedar Little (1971)
Juniperus virginiana
 var. virginiana 		eastern redcedar Little (1971)
Juniperus silicicola
= Juniperus virginiana
 var. silicicola 		southern redcedar Little (1971)
Juniperus ashei Ashe juniper Little (1971)
Juniperus californica California juniper Little (1971)
Juniperus deppeana alligator juniper Little (1971)
Juniperus flaccida drooping juniper Little (1971)
Juniperus monosperma one seed juniper Little (1971)
Juniperus occidentalis western juniper Little (1971)
Juniperus osteosperma Utah juniper Little (1971)
Juniperus pinchotii
 ≈ Juniperus erythrocarpa p.p. 		Pinchot juniper Little (1971)
Little (1981)
Juniperus arizonica
 ≈ Juniperus erythrocarpa p.p. 		redberry juniper,
Arizona juniper 		Little (1981)
Juniperus scopulorum Rocky Mountain juniper Little (1971)
Juniperus maritima seaside juniper,
Puget Sound juniper 		Little (1971)

Kalmia

[edit]
Latin Name English Name Mapmaker 0 1 2
Kalmia latifolia mountain laurel Little (1977)

Koeberlinia

[edit]
Latin Name English Name Mapmaker 0 1 2
Koeberlinia spinosa allthorn Little (1976)

Krugiodendron

[edit]
Latin Name English Name Mapmaker 0 1 2
Krugiodendron ferreum leadwood Little (1978)

Laguncularia

[edit]
Latin Name English Name Mapmaker 0 1 2
Laguncularia racemosa white mangrove Little (1978)

Larrea

[edit]
Latin Name English Name Mapmaker 0 1 2
Larrea divaricata creosote bush Yang (1970)

Leitneria

[edit]
Latin Name English Name Mapmaker 0 1 2
Leitneria floridana corkwood Little (1977)

Leucaena

[edit]
Latin Name English Name Mapmaker 0 1 2
Leucaena pulverulenta great leadtree Little (1976)
Leucaena retusa littleleaf leadtree Little (1976)

Libocedrus

[edit]
Latin Name English Name Mapmaker 0 1 2
Libocedrus decurrens incense cedar Little (1971)

Licaria

[edit]
Latin Name English Name Mapmaker 0 1 2
Licaria triandra Florida licaria Little (1978)

Liquidambar

Latin Name English Name Mapmaker 0 1 2 3 4 5
Liquidambar styraciflua sweetgum Little (1971)

Liriodendron

Latin Name English Name Mapmaker 0 1 2 3 4 5
Liriodendron tulipifera Tulip-tree Little (1971)

Lithocarpus

[edit]
Latin Name English Name Mapmaker 0 1 2
Lithocarpus densiflorus tanoak Little (1971)

Lyonia

[edit]
Latin Name English Name Mapmaker 0 1 2
Lyonia ferruginea tree lyonia Little (1977)

Lyonothamnus

[edit]
Latin Name English Name Mapmaker 0 1 2
Lyonothamnus floribundus Lyontree Little (1976)

Lysiloma

[edit]
Latin Name English Name Mapmaker 0 1 2
Lysiloma latisiliquum Bahama lysiloma Little (1978)
Lysiloma microphylla littleleaf lysiloma Little (1976)

Maclura

[edit]
Latin Name English Name Mapmaker 0 1 2
Maclura pomifera Osage orange Little (1971)

Magnolia

Latin Name English Name Mapmaker 0 1 2 3 4 5
Magnolia grandiflora southern magnolia Little (1971)
Magnolia virginiana sweetbay Little (1971)
Magnolia acuminata cucumbertree Little (1971)
Magnolia tripetala umbrella magnolia Little (1977)
Magnolia ashei Ashe magnolia Little (1977)
Magnolia fraseri Fraser magnolia Little (1977)
Magnolia macrophylla bigleaf magnolia Little (1977)
Magnolia pyramidata pyramid magnolia Little (1977)

Malus

[edit]
Latin Name English Name Mapmaker 0 1 2
Malus angustifolia southern crab apple Little (1977)
Malus coronaria sweet crab apple Little (1977)
Malus diversifolia Oregon crab apple Little (1976)
Malus ioensis prairie crab apple Little (1977)

Manilkara

[edit]
Latin Name English Name Mapmaker 0 1 2
Manilkara bahamensis wild dilly Little (1978)

Mastichodendron

[edit]
Latin Name English Name Mapmaker 0 1 2
Mastichodendron foetidissimum false mastic Little (1978)

Maytenus

[edit]
Latin Name English Name Mapmaker 0 1 2
Maytenus phyllanthoides Florida mayten Little (1978)

Metopium

[edit]
Latin Name English Name Mapmaker 0 1 2
Metopium toxiferum Florida poisontree Little (1978)

Morus

[edit]
Latin Name English Name Mapmaker 0 1 2
Morus microphylla Texas mulberry Little (1976)
Morus rubra red mulberry Little (1971)

Myrcianthes

[edit]
Latin Name English Name Mapmaker 0 1 2
Myrcianthes fragrans twinberry stopper Little (1978)

Myrica

[edit]
Latin Name English Name Mapmaker 0 1 2
Myrica californica Pacific bayberry Little (1976)
Myrica cerifera southern bayberry Little (1977)
Myrica heterophylla evergreen bayberry Little (1977)
Myrica inodora odorless bayberry Little (1977)
Myrica pensylvanica northern bayberry Little (1977)

Nectandra

[edit]
Latin Name English Name Mapmaker 0 1 2
Nectandra coriacea Florida nectandra Little (1978)

Nemopanthus

[edit]
Latin Name English Name Mapmaker 0 1 2
Nemopanthus collinus mountain holly Little (1977)

Nolina

[edit]
Latin Name English Name Mapmaker 0 1 2
Nolina bigelovii Bigelow nolina Little (1976)

Nyssa

[edit]
Latin Name English Name Mapmaker 0 1 2
Nyssa aquatica water tupelo Little (1971)
Nyssa ogeche Ogeechee tupelo Little (1971)
Nyssa sylvatica black tupelo, blackgum Little (1971)

Olneya

[edit]
Latin Name English Name Mapmaker 0 1 2
Olneya tesota tesota Little (1976)

Opuntia

[edit]
Latin Name English Name Mapmaker 0 1 2
Opuntia fulgida jumping cholla Little (1976)

Osmanthus

[edit]
Latin Name English Name Mapmaker 0 1 2
Osmanthus americanus devilwood Little (1977)

Ostrya

[edit]
Latin Name English Name Mapmaker 0 1 1938
Ostrya chisosensis Chisos hophornbean Little (1976)
Ostrya knowltonii Knowlton hophornbeam Little (1976)
Ostrya virginiana eastern hophornbeam Little (1971)

Oxydendrum

[edit]
Latin Name English Name Mapmaker 0 1 2
Oxydendrum arboreum sourwood Little (1977)

Parkinsonia

Latin Name English Name Mapmaker 0 1 2 3
Parkinsonia aculeata Jerusalem thorn,
Mexican paloverde 		Little (1976)
Map 107
Cercidium floridum
= Parkinsonia florida 		blue paloverde Little (1976)
Map 35
Cercidium macrum
= Parkinsonia texana
  var. macra 		border paloverde Little (1976)
Map 36
Cercidium microphyllum
= Parkinsonia microphylla 		yellow paloverde Little (1976)
Map 37

Persea

[edit]
Latin Name English Name Mapmaker 0 1 2
Persea borbonia redbay Little (1977)

Photinia

[edit]
Latin Name English Name Mapmaker 0 1 2
Photinia arbutifolia Christmas berry Little (1976)

Picramnia

[edit]
Latin Name English Name Mapmaker 0 1 2
Picramnia pentandra bitterbush Little (1978)

Pinckneya

[edit]
Latin Name English Name Mapmaker 0 1 2
Pinckneya pubens pinckneya Little (1977)

Piscidia

[edit]
Latin Name English Name Mapmaker 0 1 2
Piscidia piscipula Florida fishpoison tree Little (1978)

Pisonia

[edit]
Latin Name English Name Mapmaker 0 1 2
Pisonia rotundata pisonia Little (1978)

Pistacia

[edit]
Latin Name English Name Mapmaker 0 1 2
Pistacia texana Texas pistache Little (1976)

Pithecellobium

[edit]
Latin Name English Name Mapmaker 0 1 2
Pithecellobium flexicaule ebony blackbead Little (1976)
Pithecellobium guadalupense Guadeloupe blackbead Little (1978)
Pithecellobium pallens huajillo Little (1976)
Pithecellobium unguis-cati catclaw blackbead Little (1978)

Planera

[edit]
Latin Name English Name Mapmaker 0 1 2
Planera aquatica planertree Little (1977)

Platanus

[edit]
Latin Name English Name Mapmaker 0 1 2
Platanus occidentalis American sycamore Little (1971)
Platanus racemosa California sycamore Little (1976)
Platanus wrightii Arizona sycamore Little (1976)

Populus

Latin Name English Name Mapmaker 0 1 2 3 4
Populus angustifolia narrowleaf cottonwood Little (1976)
Populus fremontii Fremont cottonwood Little (1971)
Populus arizonica
= P. fremontii fremontii 		Arizona cottonwood Little (1976) The populations on the USGS Populus arizonica map have been added to the Populus fremontii map above.
Populus × hinckleyana
[angustifolia × fremontii] 		Hinckley cottonwood Little (1976)
Populus balsamifera balsam poplar Little (1971)
Populus deltoides eastern cottonwood Little (1971)
Populus grandidentata bigtooth aspen Little (1971)
Munns (1938)
Populus heterophylla swamp cottonwood Little (1971)
Populus tremuloides quaking aspen Little (1971)
Populus trichocarpa black cottonwood Little (1971)
Munns (1938)

Prosopis

[edit]
Latin Name English Name Mapmaker 0 1 2
Prosopis juliflora mesquite Little (1976)
Prosopis pubescens screwbean mesquite Little (1976)

Prunus

Latin Name English Name Mapmaker 0 1 2 3
Prunus serotina black cherry Little (1971)
Prunus americana American plum Little (1976,77)
Prunus angustifolia Chickasaw plum Little (1976,77)
Prunus pensylvanica pin cherry Little (1976,77)
Prunus virginiana common chokecherry Little (1976,77)
Prunus alleghaniensis Allegheny plum Little (1977)
Prunus caroliniana Carolina laurelcherry Little (1977)
Prunus hortulana hortulan plum Little (1977)
Prunus mexicana Mexican plum Little (1977)
Prunus munsoniana
 = Prunus rivularis 		wildgoose plum,
creek plum 		Little (1977)
Prunus nigra Canada plum Little (1977)
Prunus umbellata flatwoods plum Little (1977)
Prunus myrtifolia West Indies cherry Little (1978)
Prunus emarginata bitter cherry Little (1976)
Prunus fremontii desert apricot Little (1976)
Prunus ilicifolia
 var. ilicifolia
 var. occidentalis 		hollyleaf cherry,
Catalina cherry 		Little (1976)
P. ilicifolia var. ilicifolia hollyleaf cherry Little (1976)
P. ilicifolia var. occidentalis
 ≈ Prunus lyonii 		Catalina cherry Little (1976)
Prunus subcordata Klamath plum Little (1976)


Pseudophoenix

[edit]
Latin Name English Name Mapmaker 0 1 2
Pseudophoenix sargentii buccaneer palm Little (1978)

Psidium

[edit]
Latin Name English Name Mapmaker 0 1 2
Psidium longipes long stalk stopper Little (1978)

Ptelea

[edit]
Latin Name English Name Mapmaker 1976 1 2
Ptelea crenulata California hoptree Little (1976)
Ptelea trifoliata common hoptree Little (1976)

Quercus

Eastern Quercus

[edit]

Vol. 1 (1971)

[edit]
Latin Name English Name Mapmaker 1971 1 2 1938
Quercus alba white oak Little (1971)
Quercus bicolor swamp white oak Little (1971)
Quercus coccinea scarlet oak Little (1971)
Quercus ellipsoidalis northern pin oak Little (1971)
Munns (1938)
Quercus falcata southern red oak Little (1971)
Quercus laurifolia laurel oak Little (1971)
Quercus lyrata overcup oak Little (1971)
Quercus macrocarpa bur oak Little (1971)
Quercus marilandica blackjack oak Little (1971)
Quercus michauxii swamp chestnut oak Little (1971)
Quercus muehlenbergii chinkapin oak Little (1971)
Munns (1938)
Quercus nigra water oak Little (1971)
Quercus nuttallii
 = Quercus texana 		Nuttall oak Little (1971)
Quercus palustris pin oak Little (1971)
Munns (1938)
Quercus phellos willow oak Little (1971)
Munns (1938)
Quercus × heterophylla Bartram oak Little (1971)
Munns (1938)
Quercus prinus
 = Quercus montana 		chestnut oak Little (1971)
Quercus rubra northern red oak Little (1971)
Quercus shumardii Shumard oak Little (1971)
Quercus stellata post oak Little (1971)
Quercus velutina black oak Little (1971)
Quercus virginiana live oak Little (1971)

Vol. 4 (1977)

[edit]
Latin Name English Name Mapmaker 0 1 2
Quercus arkansana Arkansas oak Little (1977)
Quercus chapmanii Chapman oak Little (1977)
Quercus durandii Durand oak Little (1977)
Quercus georgiana Georgia oak Little (1977)
Quercus ilicifolia bear oak Little (1977)
Quercus imbricaria shingle oak Little (1977)
Quercus incana bluejack oak Little (1977)
Quercus laevis turkey oak Little (1977)
Quercus myrtifolia myrtle oak Little (1977)
Quercus oglethorpensis Oglethorpe oak Little (1977)

Western Quercus

[edit]

Vol. 1 (1971)

[edit]
Latin Name English Name Mapmaker 1971 1 1938
Quercus agrifolia California live oak Little (1971)
Quercus chrysolepis canyon live oak Little (1971)
Quercus douglasii blue oak Little (1971)
Quercus emoryi Emory oak Little (1971)
Quercus gambelii Gambel oak Little (1971)
Quercus garryana Oregon white oak Little (1971)
Munns (1938)
Quercus kelloggii California black oak Little (1971)
Munns (1938)
Quercus lobata California white oak Little (1971)

Vol. 3 (1976)

[edit]
Latin Name English Name Mapmaker 0 1 2
Quercus ajoensis Ajo oak Little (1976)
Quercus arizonica Arizona white oak Little (1976)
Quercus dunnii
 = Quercus palmeri 		Dunn oak Little (1976)
Quercus engelmannii Engelmann oak Little (1976)
Quercus glaucoides (auct?)
  = Quercus laceyi 		Lacey oak Little (1976)
Quercus graciliformis Chisos oak Little (1976)
Quercus gravesii incl.
 Q. tardifolia (Muller) 		Graves oak,
lateleaf oak 		Little (1976)
Quercus grisea gray oak Little (1976)
Quercus havardii Havard oak Little (1976)
Quercus hypoleucoides silverleaf oak Little (1976)
Quercus macdonaldii McDonald oak Little (1976)
Quercus mohriana Mohrs oak Little (1976)
Quercus oblongifolia Mexican blue oak Little (1976)
Quercus pungens sandpaper oak Little (1976)
Quercus rugosa netleaf oak Little (1976)
Quercus tomentella island live oak Little (1976)
Quercus toumeyi Toumey oak Little (1976)
Quercus turbinella shrub live oak Little (1976)
Quercus wislizeni interior live oak Little (1976)

Rapanea

[edit]
Latin Name English Name Mapmaker 0 1 2
Rapanea punctata Florida rapanea Little (1978)

Reynosia

[edit]
Latin Name English Name Mapmaker 0 1 2
Reynosia septentrionalis darling plum Little (1978)

Rhamnus

[edit]
Latin Name English Name Mapmaker 0 1 2
Rhamnus betulaefolia birchleaf buckthorn Little (1976)
Rhamnus californica California buckthorn Little (1976)
Rhamnus caroliniana Carolina buckthorn Little (1977)
Rhamnus crocea hollyleaf buckthorn Little (1976)
Rhamnus purshiana cascara buckthorn Little (1971)

Rhizophora

[edit]
Latin Name English Name Mapmaker 0 1 2
Rhizophora mangle mangrove Little (1971,78)

Rhododendron

[edit]
Latin Name English Name Mapmaker 0 1 2
Rhododendron catawbiense Catawba rhododendron Little (1977)
Rhododendron macrophyllum Pacific rhododendron Little (1976)
Rhododendron maximum rosebay rhododendron Little (1977)

Rhus

Latin Name English Name Mapmaker 0 1 2 3 4/5
Rhus glabra smooth sumac Little (1976,77)
Rhus typhina staghorn sumac Little (1977)
Rhus copallinum
 ≈ Rhus copallina 		shining sumac Little (1977)
Rhus copallinum var. lanceolata
 ≈ Rhus lanceolata 		prairie sumac,
flameleaf sumac 		Little (1976)
Rhus virens var. choriophylla
 ≈ Rhus choriophylla 		Mearns sumac Little (1976)
Rhus integrifolia lemonade sumac Little (1976)
Rhus kearneyi Kearney sumac Little (1976)
Rhus microphylla littleleaf sumac Little (1976)
Rhus ovata sugar sumac Little (1976)
Malosma laurina
 ≈ Rhus laurina 		laurel sumac Little (1976)

Robinia

Latin Name English Name Mapmaker 0 1 2
Robinia pseudoacacia black locust Little (1971)
Robinia hispida var. kelseyi
≈ Robinia kelseyi 		Kelsey locust Little (1977)
Robinia viscosa clammy locust Little (1977)
Robinia neomexicana New Mexican locust Little (1976)

Roystonea

[edit]
Latin Name English Name Mapmaker 0 1 2
Roystonea elata Florida royalpalm Little (1978)

Sabal

[edit]
Latin Name English Name Mapmaker 0 1 2
Sabal mexicana Mexican palmetto Little (1976)
Sabal minor dwarf palmetto Little (1977)
Sabal palmetto cabbage palmetto Little (1971)

Salix

Salix subg. Salix

[edit]
Latin Name English Name Mapmaker 0 1 2 3 1938
Salix amygdaloides peachleaf willow Little (1971)
Salix nigra black willow Little (1971,76)
Salix caroliniana Coastal Plain willow Little (1977)
Salix floridana Florida willow Little (1977)
Salix lucida & lasiandra shining willow,
Pacific willow 		Little (1977)
Little (1976)
Salix lucida ssp. lucida shining willow Little (1977)
Salix lucida ssp. lasiandra Pacific willow Little (1976)
Salix bonplandiana Bonpland willow Little (1976)
Salix laevigata red willow Little (1976)

Salix subg. Vetrix

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Salix bebbiana Bebb willow Little (1976,77)
Salix discolor pussy willow Little (1976,77)
Salix petiolaris meadow willow Little (1976,77)
Salix pellita satiny willow Little (1977)
Salix pyrifolia balsam willow Little (1977)
Salix sericea silky willow Little (1977)
Salix alaxensis feltleaf willow Little (1976)
Salix arbusculoides peachleaf willow Little (1976)
Salix geyeriana Geyer willow Little (1976)
Salix hookeriana Hooker willow Little (1976)
Salix lasiolepis arroyo willow Little (1976)
Salix prolixa
≈ Salix mackenzieana 		Mackenzie willow Little (1976)
Salix scouleriana Scouler willow Little (1976)
Salix sitchensis Sitka willow Little (1976)
Salix tracyi Tracy willow Little (1976)

Salix subg. Longifoliae

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Latin Name English Name Mapmaker 0 1 2 3
Salix exigua coyote willow Little (1976,77)
Salix exigua hindsiana
≈ Salix hindsiana 		Hinds willow Little (1976)
Salix exigua
 var. exigua &
 var. hindsiana 		coyote willow Little (1976)
Salix interior
≈ Salix exigua var. interior 		sandbar willow Little (1976)
Salix interior &
Salix exigua 		sandbar willow &
coyote willow 		Little (1976)
Salix columbiana
≈ S. fluviatilis
≈ S. exigua var. columbiana 		river willow,
Columbia river willow 		Little (1976)
Salix sessilifolia
≈ S. exigua var. sessilifolia 		northwest sandbar willow Little (1976)
Salix taxifolia yewleaf willow Little (1976)

Sambucus

Latin Name English Name Mapmaker 0 1 2 3 Original
Sambucus nigra
 subsp. canadensis
 subsp. cerulea 		Black elder Little (1976)
Little (1977)
Sambucus nigra canadensis
= Sambucus canadensis 		American elder Little (1977)
Sambucus nigra canadensis
= Sambucus mexicana 		Mexican elder Little (1976)
Sambucus nigra cerulea
= Sambucus cerulea
≈ Sambucus glauca 		blueberry elder Little (1976)
Sambucus nigra cerulea
≈ Sambucus velutina 		velvet elder Little (1976)
Sambucus racemosa
 var. racemosa
 var. melanocarpa 		Red elder Little (1976)
Sambucus racemosa racemosa
≈ Sambucus callicarpa 		Pacific red elder Little (1976)
Sambucus racemosa melanocarpa
≈ Sambucus melanocarpa 		blackbead elder Little (1976)

Sapium

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Sapium biloculare jumping bean sapium Little (1976)

Sapindus

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Sapindus drummondii western soapberry Little (1976,77)
Sapindus saponaria wingleaf soapberry Little (1977,78)

Sassafras

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Sassafras albidum sassafras Little (1971)

Savia

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Savia bahamensis maidenbush Little (1978)

Schaefferia

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Schaefferia frutescens Florida boxwood Little (1978)

Schoepfia

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Schoepfia chrysophylloides graytwig Little (1978)

Sequoiadendron

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Sequoiadendron giganteum giant sequoia Little (1971)

Sequoia

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Sequoia sempervirens redwood Little (1971)

Serenoa

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Serenoa repens saw palmetto Little (1977)

Shepherdia

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Shepherdia argentea silver buffaloberry Little (1977,76)

Simarouba

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Simarouba glauca paradise tree Little (1978)

Solanum

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Solanum erianthum mullein nightshade Little (1977,78)

Sophora

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Sophora affinis Texas sophora Little (1977)
Sophora secundiflora mescalbean Little (1976)

Sorbus

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Sorbus americana American mountain ash Little (1977)
Sorbus decora showy mountain ash Little (1977)
Sorbus scopulina Greene mountain ash Little (1976)
Sorbus sitchensis Sitka mountain ash Little (1976)

Staphylea

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Staphylea bolanderi Sierra bladdernut Little (1976)
Staphylea trifolia American bladdernut Little (1977)

Stewartia

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Stewartia malacodendron Virginia stewartia Little (1977)
Stewartia ovata mountain stewartia Little (1977)

Styrax

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Styrax americana American snowbell Little (1977)
Styrax grandifolia bigleaf snowbell Little (1977)
Styrax platanifolia sycamore leaf snowbell Little (1977)

Suriana

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Suriana maritima baycedar Little (1978)

Swietenia

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Swietenia mahagoni West Indies mahogany Little (1978,71)

Symplocos

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Symplocos tinctoria common sweetleaf Little (1977)

Taxodium

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Taxodium distichum baldcypress Little (1971)
Taxodium mucronatum Montezuma baldcypress Little (1971)

Taxus

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Taxus brevifolia Pacific yew Little (1971)
Taxus canadensis Canada yew Little (1971)
Taxus floridana Florida yew Little (1971)

Tetrazygia

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Tetrazygia bicolor Florida tetrazygia Little (1978)

Thrinax

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Thrinax morrisii key thatchpalm Little (1978)
Thrinax radiata Florida thatchpalm Little (1978)

Thuja

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Thuja occidentalis northern white cedar Little (1971)
Thuja plicata western redcedar Little (1971)

Tilia

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Tilia americana American basswood Little (1971)
Tilia caroliniana Carolina basswood Little (1977)
Tilia heterophylla white basswood Little (1971)

Torreya

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Torreya californica California torreya Little (1971)
Torreya taxifolia Florida torreya Little (1971)

Toxicodendron

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Toxicodendron vernix poison sumac Little (1977)

Trema

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Trema lamarckiana West Indies trema Little (1978)
Trema micrantha Florida trema Little (1978)

Ulmus

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Ulmus americana American elm Little (1971)
Ulmus rubra slippery elm Little (1971)
Ulmus thomasii rock elm Little (1971)
Ulmus alata winged elm Little (1971)
Ulmus serotina September elm Little (1971)
Ulmus crassifolia cedar elm Little (1971)

Umbellularia

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Umbellularia californica California laurel Little (1971)

Ungnadia

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Ungnadia speciosa Mexican buckeye Little (1976)

Vaccinium

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Vaccinium arboreum tree sparkleberry Little (1977)

Vauquelinia

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Vauquelinia californica Torrey vauquelinia Little (1976)
Vauquelinia pauciflora fewflower vauquelinia Little (1976)

Viburnum

Latin Name English Name Mapmaker 0 1 2 3
Viburnum lentago nannyberry Little (1976,77)
Viburnum trilobum
=V. opulus var. americanum
=V. opulus ssp. trilobum 		American cranberrybush Little (1976,77)
Viburnum prunifolium blackhaw Little (1977)
Viburnum rufidulum rusty blackhaw Little (1977)
Viburnum nudum possumhaw viburnum Little (1977)
Viburnum obovatum Walter viburnum,
small-leaf arrowwood 		Little (1977)

Washingtonia

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Washingtonia filifera California washingtonia Little (1976)

Ximenia

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Ximenia americana tallowwood Little (1978)

Yucca

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Yucca aloifolia aloe yucca Little (1977)
Yucca brevifolia Joshua tree Little (1976)
Yucca carnerosana Carneros yucca Little (1976)
Yucca elata soaptree yucca Little (1976)
Yucca faxoniana Faxon yucca Little (1976)
Yucca gloriosa moundlily yucca Little (1977)
Yucca mohavensis Mohave yucca Little (1976)
Yucca rostrata beaked yucca Little (1976)
Yucca schottii Schotts yucca Little (1976)
Yucca torreyi Torrey yucca Little (1976)
Yucca treculeana Trecul yucca Little (1976)

Zanthoxylum

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Latin Name English Name Mapmaker 0 1 2
Zanthoxylum americanum common prickly ash Little (1977)
Zanthoxylum clava-herculis Hercules club Little (1977)
Zanthoxylum coriaceum Biscayne prickly ash Little (1978)
Zanthoxylum fagara lime prickly ash Little (1977,78)
Zanthoxylum flavum West Indies satinwood Little (1978)
Zanthoxylum hirsutum Texas Hercules club Little (1977)
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