File:Arctotheca calendula plant7 NC - Flickr - Macleay Grass Man.jpg
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| Description | Introduced, cool-season annual, stemless or short-stemmed herb to 30 cm tall. Leaves form a prostrate rosette to 50 cm in diameter; they are spear shaped, serrated, deeply lobed; upper surface hairless to hairy; lower surface white felted. Flowerheads occur on unbranched peduncles. Ray florets are yellow, ligulate and sterile; disc florets are dark, tubular and bisexual. Germinates in autumn/winter; flowers in spring. A native of South Africa, it is strongly competitive weed of crops, pastures, lawns and disturbed areas (e.g. roadsides). Prefers lighter textured soils of reasonable fertility and where there is a lack of competition. Grazed by stock, but is of lower value than many good pasture species. Can cause nitrate poisoning in sheep and cattle on high fertility soils; taints milk; causes allergic skin reaction in horses and donkeys. Best managed using a number of methods: competition, grazing, mechanical, herbicides. Maintain dense, vigorous pastures and minimise soil disturbance. Needs to be controlled in year prior to sowing pastures; control is easiest at the seedling stage. Combined knockdown herbicides prior to sowing, selective post-sowing herbicides or manuring of crops and pastures can be highly effective for control. |
| Date | |
| Source | Arctotheca calendula plant7 NC |
| Author | Harry Rose from Dungog, Australia |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This image was originally posted to Flickr by Macleay Grass Man at https://flickr.com/photos/73840284@N04/22404831861. It was reviewed on 5 November 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:25, 5 November 2016 | | 3,000 × 4,000 (6.42 MB) | Josve05a (talk | contribs) | == {{int:filedesc}} == {{Information |Description=Introduced, cool-season annual, stemless or short-stemmed herb to 30 cm tall. Leaves form a prostrate rosette to 50 cm in diameter; they are spear shaped, serrated, deeply lobed; upper surface hairless... |
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