File:Sorghum halepense head10 NC - Flickr - Macleay Grass Man.jpg

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Description Introduced warm-season perennial large C4 grass; stems grow to 200 cm tall and arise from long stout rhizomes. Leaves are broad, with distinctive white midribs. Leaf sheaths and nodes are hairless. Flowerheads are large open panicles 25-45 cm long. Spikelets are paired (lower awned, upper unawned), 4-6 mm long, 2-flowered and often red/brown on one side and green on the other. Flowers in summer and early autumn. A native of the Mediterranean, it is a weed of disturbed areas such as roadsides, stream banks and crops. Most common on fertile soils, but sensitive to frosts. Classed as a noxious weed in many regions. Invades cropping land, is a host of crop pests and diseases, is a contaminant of seed crops and is a safety hazard along roadsides. Can be toxic to livestock; this is most likely if grazing stunted, wilted or young plants with hungry stock. Spread by seeds in contaminated hay, grain and seed and by rhizomes during flooding, cultivation or roadside grading. The most effective controls are hygiene and registered herbicides, as ploughing or pulling may aid its spread through the movement of rhizomes.
Date
Source Sorghum halepense head10 NC
Author Harry Rose from Dungog, Australia
Camera location32° 36′ 51.51″ S, 151° 36′ 30.74″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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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://flickr.com/photos/73840284@N04/25985125354. It was reviewed on 5 November 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0.

5 November 2016

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Date/TimeThumbnailDimensionsUserComment
current21:28, 23 November 2019Thumbnail for version as of 21:28, 23 November 20192,297 × 2,439 (1.78 MB)Salicyna (talk | contribs)Cropped 43 % horizontally, 19 % vertically using CropTool with precise mode.
11:18, 5 November 2016Thumbnail for version as of 11:18, 5 November 20164,000 × 3,000 (4.43 MB)Josve05a (talk | contribs)== {{int:filedesc}} == {{Information |Description=Introduced warm-season perennial large C4 grass; stems grow to 200 cm tall and arise from long stout rhizomes. Leaves are broad, with distinctive white midribs. Leaf sheaths and nodes are hairless. Flow...

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