File:Bidens pilosa leaf2 (14975884277).jpg
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[edit]DescriptionBidens pilosa leaf2 (14975884277).jpg | Introduced, yearlong-green to warm-season, annual to short-lived perennial, hairless to densely hairy herb to 1 m tall. Leaves are opposite, 6-12 cm long, 3-5 lobed and toothed. Flowerheads are in loose cymes or heads are solitary. Heads are 5-15 mm wide, with yellow central florets; white ray florets may be present. Fruit are 6-12 mm long, dark and linear; with 2-3 barbs at the tip. Flowering is year-round, but mainly from summer to autumn. A native of tropical America, it is a weed of disturbed areas, such as roadsides, pastures, maize, and sorghum. Sometimes incorrectly referred to as fleabane. An indicator of disturbance or low ground cover. Potentially toxic to sheep and cattle when plants accumulate high levels of nitrate (more likely on fertile sites). The risk to goats is low. Plants with normal nitrate levels are palatable and safe to graze. Burrs are a nuisance as they readily attached to clothing and fur. Aromatic oil in the plant has an offensive smell and can taint milk. Plants can be controlled by healthy vigorous pastures, grazing (goats preferred), chipping or hand pulling, slashing and herbicides. |
Date | |
Source | Bidens pilosa leaf2 |
Author | Harry Rose from South West Rocks, Australia |
Licensing
[edit]This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/14975884277. 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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:58, 2 February 2020 | 2,769 × 2,077 (1.64 MB) | Salicyna (talk | contribs) | Cropped 31 % horizontally, 31 % vertically using CropTool with precise mode. | |
14:20, 26 May 2015 | 4,000 × 3,000 (3.44 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Canon |
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Camera model | Canon PowerShot A650 IS |
Exposure time | 1/400 sec (0.0025) |
F-number | f/2.8 |
ISO speed rating | 80 |
Date and time of data generation | 13:57, 1 September 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 | 12:27, 7 September 2014 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 13:57, 1 September 2014 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 8.65625 |
APEX aperture | 2.96875 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
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 | Portrait |
Unique image ID | 361765574df28d88ec9dbcb914a15f4f |
Keywords |
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IIM version | 4 |