File:Polygonum arenastrum leaf2 (14757975008).jpg
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Summary
[edit]DescriptionPolygonum arenastrum leaf2 (14757975008).jpg |
Introduced, warm-season, annual or biennial, mat-forming herb, with a deep taproot. Stems are prostrate, to 1 m long and arise from the one point. Leaves are all the same size, hairless, blue-green and 8-30 mm long. Flowers are small (1.8-3 mm long), pink or white and solitary or in small clusters in the leaf axils. Flowering is in spring and summer. A native of Europe, it is a weed of disturbed areas, particularly roadsides, wasteland, cropping paddocks, gateways and degraded pastures. An indicator of poor ground cover. Can form dense mats in newly sown pastures and is a weed of summer fallows or summer crops such as lucerne. Strongly competitive, it has vigorous seedlings with a strong tap root; mature plants inhibit the germination of many seedlings (allelopathic effect) particularly medic species. May be grazed by cattle and sheep, usually without a problem, but seeds can cause photosensitization in cattle and enteritis in all types of livestock; leaves occasionally cause dermatitis. Controlled with healthy vigorous pastures. Registered herbicides are available for control. |
Date | |
Source | Polygonum arenastrum leaf2 |
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@N04/14757975008. It was reviewed on 16 November 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
16 November 2014
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current | 03:22, 16 November 2014 | 1,600 × 1,200 (587 KB) | Lijealso (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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JPEG file comment | cmp3.10.3.1Lq4 0xdb489877 |
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