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Deyeuxia Clarion ex P. Beauv., Ess. Agrostogr. 43. 1812.
野青茅屬
Perennials; culms hollow. Blades linear, flat or with upwards inrolled margins. ligule membranous, well-developed. Inflorescence in open or contrated often much branched panicles. Spikelets terete and acute when young, afterwards laterally compressed, 1-flowered; rachilla arthiculate above the glumes, usually protruding or sometimes not; glumes usually as long as the spikelet, acute, membranous, keeled; lower glumes 1-nerved; upper glume 1 or 3-nerved; lemma herbaceous, more or less rough, apex 2-4-toothed or -lobed, 3-5-nerved, , usually with slender dorsal awn; with a tuft of hairs at the base of lemma, whcich never exceed lemma; palea as long as lemma or somewhat shorter.
About 200 species in the temperate regions.
Veldkamp, J.F. 1994. Deyeuxia stenophylla and D. suizanensis
(Gramineae) in Malesia and Taiwan. Taiwania 35: 1--4.
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KEY TO THE SPECIES
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Blades 3 mm wide or more, flatish or weakly involute-margined; lemmas subobtuse to minutely toothed at apex. |
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Deyeuxia brachytricha |
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Blades 1.5-3 mm wide, strongly involute forming a pipe 0.3-1 mm across; lemmas acuminate but not toothed at apex. |
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Deyeuxia suizanensis |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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