File:Acetosella vulgaris plant10 Canberra (15554674482).jpg
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[edit]DescriptionAcetosella vulgaris plant10 Canberra (15554674482).jpg | Introduced, cool-season, perennial, slender, erect herb to 40 cm tall. Rhizomes can form dense mats in some areas. Leaves form a rosette at the base of the plant; they are 2-7 cm long and shaped like an arrowhead, with 2 projecting lobes at their base. Flowerheads are narrow panicles with small rusty red flowers. Flowering is in spring. Possibly a native of Europe, it is a weed of pastures, waste ground and along roadsides; most common on acid, low fertility, sandy soils. Often considered to be a weed of acid soils, but really indicates poorly competitive pastures, which may be caused by soil acidity. Is grazed, especially by sheep, but contains an oxalate that occasionally poisons stock where sorrel is abundant. Grazing systems (rotational grazing and spelling) that promote good groundcover and competition will reduce sorrel. Fertiliser, and sometimes lime, is important to maintain competitive pastures. Herbicides used to control sorrel also kill legumes. |
Date | |
Source | Acetosella vulgaris plant10 Canberra |
Author | Harry Rose from South West Rocks, Australia |
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/15554674482. It was reviewed on 26 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
26 May 2015
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current | 14:13, 26 May 2015 | 4,000 × 3,000 (6.73 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A650 IS |
Exposure time | 1/200 sec (0.005) |
F-number | f/8 |
ISO speed rating | 80 |
Date and time of data generation | 11:50, 11 October 2014 |
Lens focal length | 7.4 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Picasa |
File change date and time | 15:02, 17 October 2014 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 11:50, 11 October 2014 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 7.65625 |
APEX aperture | 6 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 13,745.704467354 |
Focal plane Y resolution | 13,698.630136986 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Unique image ID | 11bee8d1f98d5e08154570149b79f17d |
Keywords |
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IIM version | 4 |