ChayopsisGramineaeIt is a genus with 5 species, one or perennial herb;Stems clustered;racemeSeveral, nearly fingered;Spikelets are ovate lanceolate and distributed in temperate regions of the Old World.
Chayopsis,Gramineae, 5 species, distributed in the Eastern Hemispherethe temperate zoneRegion, ChinaPhyllostachys pubescensA. semialata（R. Br.) Hitchc. and A. cimicina (Beauv.) Stapf, from central to southern China.One or perennial herb;Stems clustered;racemeSeveral, nearly fingered;Spikelets ovate lanceolate, dorsal and ventral compressed, clustered in pairs or irregularly;The glume is unequal, the first glume is smaller, 3-veined, with short awn or convex tip, the second glume is about as long as the spikelet, 5-veined, and the outer vein is densely hairy;The solid lemma is nearly leathery, with small eyelashes on the edge.
Perennial or annual herbs.The stalks are clustered, standing or lying on the ground.The leaves are flat or folded.There are several racemes arranged at the top of the culm in subdigital shape.Spikelets are elliptic, with 2 florets, flattened back and belly, with unequal stalks, twins or several clusters on one side of a triangular rachis;The first glume is short, membranous, with 3 veins;The second glume is as long as the spikelet, herbaceous, with 5 veins, the edge is densely ciliated, the first lemma is homogeneous with the second glume or slightly thick, the edge is glabrous, male;The second lemma is thick and papery, smooth, with the top extending into a short awn, thin margin, and wrapping the homogenous palea.Caryopsis elliptic, hilum punctate.Chromosome x=9.[1]
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About 10 species, mainly distributed in tropical areas of the Eastern Hemisphere, Africa, India, Malaysia, Oceania and South America.There are two species and one variety in China.
