Family: Poaceae
Echinochloa
Citation:
P. Beauv., Agrost. 53 (1812).
Synonymy: Not Applicable Common name: Barnyard-grasses.
Description:
Annuals or perennials; leaf blades flat, narrow; ligule 0 or of hairs.
Inflorescence a panicle; spikelets 1-flowered, dorsally compressed, plano-convex, abaxial (i.e. with the first glume away from the axis), acuminate or awned, subsessile in dense alternate spike-like racemes; the first glume smaller than the second or the first (sterile) lemma which are equal and 5-nerved; fertile lemma and palea equal, coriaceous, smooth and shining.
Distribution:
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About 30 species from warm areas. (Vickery & Michael (1975) Contr. N.S.W. natn. Herb., Fl. Ser. 19, 2:189-211 ).
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Biology:
No text
Key to Species:
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1. Inflorescence lacking bristles |
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2. Spikelets to 3 mm long |
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E. colona 1. |
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2. Spikelets 4.75-6 mm long |
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E. lacunaria 2a. |
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1. Inflorescence with distinct bristles (usually 2-6 mm long) on the rhachis |
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3. Panicle narrowly pyramidal (widespread) |
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4. Second glume distinctly longer than the fertile (second) lemma |
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E. crus-galli 2. |
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4. Second glume about as long as or shorter than the fertile lemma |
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E. utilis 4. |
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3. Panicle spike-like (far north-east of the LE region) |
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E. inundata 3. |
Author:
Not yet available
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