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Summary
| Description | 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
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. |
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:38, 5 January 2020 | | 1,463 × 1,097 (593 KB) | Salicyna | Cropped 44 % horizontally, 44 % vertically using CropTool with precise mode. |
| 15:00, 26 May 2015 |  | 2,592 × 1,944 (1.97 MB) | Amada44 | Transferred from Flickr via Flickr2Commons |
File usage
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- Usage on mnw.wikipedia.org
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