ECHINOCHLOA POLYSTACHYA PDF

Echinochloa is a very widespread genus of plants in the grass family. Some of the species are Nakai – Pseudechinolaena polystachya; Echinochloa elephantipes – Panicum elephantipes; Echinochloa eruciformis – Brachiaria. Echinochloa polystachya (Kunth) Hitchc. Show All Show Tabs creeping river grass. Image of Echinochloa polystachya. General Information. Symbol: ECPO3. PSEUDECHINOLAENA polystachya (Kunth) Stapf [family POACEAE], in F.T.A. 9: (); Fl. Agrost. Congo Belge 2: 74 (); Ann. list grasses Ug.:

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Plants Profile for Echinochloa polystachya (creeping river grass)

Click on images to enlarge. Echinochloa polystachya Kunth Hitchc. A native of tropical and sub-tropical America from south-eastern USA i. It is still cultivated in ponded pastures in this region. At present this species has only become naturalised in small areas echinochloz northern and central Queensland and the Northern Territory.

Also naturalised in tropical and rchinochloa Africa, tropical Asia, Hawaii and beyond its native range in southern South America. A weed of seasonally flooded areas e.

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Weeds of Australia – Biosecurity Queensland Edition Fact Sheet

A robust, vigorous, aquatic or semi-aquatic grass generally growing It also produces creeping stems i. These stems are hairless i.

The leaves are alternately arranged along the echnochloa and sometimes have a reddish or purplish tinge. They consist of a leaf sheath, that partially encloses the stem, and a long and narrow i. The leaf sheaths are hairless i.

The leaf blades are flatenned, hairless i. Each of the seed-head branches i. These flower spikelets 4. They consist of two tiny flowers i.

Seeds may also be dispersed in this manner, as well as in contaminated agricultural produce and echinochlloa that becomes attached to animals and vehicles.

Continued promotion and planting as a desirable ponded-pasture plant will also accelerate its spread to new areas. This species is regarded as an environmental weed in northern Queensland and the Northern Territory and as a potential environmental weed in northern Western Australia.

It can also completely transform the habitat in waterways and slow the movement of water. However, most of the species likely to be encountered in Australia are short-lived i.

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German grass (Echinochloa polystachya) | Feedipedia

The control methods referred to in this fact sheet should be used in accordance with the restrictions federal and state legislation, and local government laws directly or indirectly related to each control method. These restrictions may prevent the use of one or more of the methods referred to, depending on individual circumstances.

While every care is taken to ensure the accuracy of this information, DEEDI does not invite reliance upon it, nor accept responsibility for any loss or damage caused by actions based on it.

Melissa Collins infestation in a wetland area Photo: Chris Gardiner habit Photo: Melissa Collins habit growing in water Photo: Chris Gardiner single flowering stem Photo: Melissa Collins stems and leaves Photo: Melissa Collins close-up of base of leaf blade showing ligule Photo: