File:Lepidium bonariense fruit1 (14652857933).jpg
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Summary
[edit]DescriptionLepidium bonariense fruit1 (14652857933).jpg | Introduced, warm-season, annual or biennial, erect, hairy herb to 50 cm tall. Leaves are all lobed or dissected; the basal leaves being deeply dissected into narrow lobes. Flowerheads are dense racemes, which elongate at maturity. Flowers are small and inconspicuous, with 2 stamens and 4 tiny white petals that are shorter than the sepals. Fruit are siliculas; green and circular, with a shallow notch at the apex. Flowering is in summer and autumn. A native of South America, it is an uncommon weed of crops, roadsides, waste areas and overgrazed pastures. Its abundance in pastures can be an indicator of overgrazing or other disturbances that have created bare ground and/or reduced competition. Relatively palatable and of reasonable feed quality when young. It quickly loses quality at flowering and is known to taint milk and eggs. Control is rarely needed. The most effective management strategy to avoid large populations is a competitive perennial pasture and good grazing management. Herbicides are registered for its control. |
Date | |
Source | Lepidium bonariense fruit1 |
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@N04/14652857933. 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 | 11:38, 5 January 2020 | 1,463 × 1,097 (593 KB) | Salicyna (talk | contribs) | Cropped 44 % horizontally, 44 % vertically using CropTool with precise mode. | |
15:00, 26 May 2015 | 2,592 × 1,944 (1.97 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Metadata
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 | NIKON |
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Camera model | E5400 |
Exposure time | 1/165 sec (0.0060606060606061) |
F-number | f/7.3 |
ISO speed rating | 50 |
Date and time of data generation | 06:21, 30 July 2006 |
Lens focal length | 6.5 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | E5400v1.3 |
File change date and time | 06:21, 30 July 2006 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 06:21, 30 July 2006 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Partial |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 31 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |