File:Andropogon virginicus spikelets10 annotated (7112450151) (2).jpg
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[edit]DescriptionAndropogon virginicus spikelets10 annotated (7112450151) (2).jpg | Introduced, warm-season, perennial, erect, tufted grass to 120 cm tall; tinged with red-purple when young, becoming tawny-bronze at maturity. Flowerheads are long, narrow spatheate panicles that pull apart easily when young. Spikelets are paired, 2-flowered, 3 mm long and awned; 2 hairy branches are attached to each awned spikelet. Flowers in autumn. Found on low fertility (especially low phosphorus) soils such as granites. Occurs along roadsides and in pastures, often where there has been some form of disturbance (e.g. cultivation or burning). Poor quality species that can dominate pastures on low fertility soils and where grazing pressure is light or absent. An indicator of low fertility soils and low grazing pressure. Mainly spread by wind or slashing of seeding plants. However, regular close slashing in February, March and April will help reduce plant abundance. Abundance declines with increased fertility as it is unresponsive to fertiliser and other species become more competitive. Abundance declines with increased grazing pressure as it has high growing points which are susceptible to trampling and grazing. |
Date | |
Source | andropogon virginicus spikelets10 annotated |
Author | Harry Rose from South West Rocks, Australia |
Camera location | 30° 54′ 08.77″ S, 153° 02′ 42.77″ E | View this and other nearby images on: OpenStreetMap | -30.902436; 153.045215 |
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This image was originally posted to Flickr by Macleay Grass Man at https://www.flickr.com/photos/73840284@N04/7112450151. It was reviewed on 20 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
20 May 2015
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current | 14:20, 20 May 2015 | 2,048 × 1,536 (1.83 MB) | Amada44 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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