File:Ambrosia artemisiifolia plant7 (11741895306).jpg
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Size of this preview: 450 × 600 pixels. Other resolutions: 180 × 240 pixels | 360 × 480 pixels | 576 × 768 pixels | 768 × 1,024 pixels | 1,944 × 2,592 pixels.
Original file (1,944 × 2,592 pixels, file size: 1.75 MB, MIME type: image/jpeg)
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This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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Summary
| Description | Introduced, warm-season, annual, erect herb to 2 m tall. Leaves form a rosette when young; they are grey-green, deeply 2- to 3- divided, hairy underneath and up to 16 cm long. Cream to pale-green male flowers occur in terminal spikes or racemes above the female flowers, which are few in number. Flowering is from late summer to early winter. A native of North America, it is a weed of bare or disturbed areas, such as roadsides, stockyards and stream banks, occasionally pastures; more abundant in the northern half of the region. Can invade and suppress overgrazed pastures, especially if grazed by horses. Seed is spread by water, stock or in fodder. An indicator of disturbance and bare ground. Unpalatable; forms a serious human health hazard, causing hay fever and worsening asthma. Maintaining vigorous pastures with good ground cover is the simplest control method in pastures. Burning, herbicides, hand-pulling, slashing and biological agents can also aid control. |
| Date | |
| Source | Ambrosia artemisiifolia plant7 |
| 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@N04/11741895306. It was reviewed on 26 May 2015 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 | 14:16, 26 May 2015 | | 1,944 × 2,592 (1.75 MB) | Amada44 | Transferred from Flickr via Flickr2Commons |
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