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Dinghushan | Family List | Poaceae

Pseudoraphis Griff.


Description from Flora of China

Aquatic or semi-aquatic perennials. Culms decumbent to stoloniferous, many-noded, rooting at lower nodes or floating. Leaf sheaths compressed; leaf blades linear to lanceolate; ligule membranous or ciliate. Inflorescence open or contracted, composed of racemes on all sides of a common axis; racemes solitary or grouped, rachis slender, bearing 1 to several alternate shortly pedicelled spikelets, terminating in a bristle. Spikelets lanceolate, terete or slightly dorsally compressed, florets 2; lower glume very small, veinless; upper glume equaling the spikelet, firmly herbaceous, scabrous to setose, long-acuminate or briefly awned; lower lemma resembling upper glume but usually slightly shorter, enclosing a shorter hyaline palea; upper floret 1/2 as long, shortly stipitate, membranous, smooth, shiny. Caryopsis eventually much larger than upper floret and filling spikelet when mature. x = 7, 9.

Six species: India to Japan and throughout SE Asia to Australia; three species in China.

(Authors: Chen Shouliang (陈守良); Sylvia M. Phillips)

Lower Taxa


Related Objects  

Flora of China  
  • Pseudoraphis.pdf
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