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Dinghushan | Family List | Cyperaceae

Diplacrum R. Br.

裂颖茅属

Description from Flora of China

Herbs, annual or occasionally perennial, tenuous, with thin fibers. Leaves cauline, sheathing, without a ligule, regularly spaced along stem; leaf blade linear, short. Inflorescence a capitate cyme, condensed, exserted from leaf sheath. Spikelets unisexual. Male spikelets basal on inflorescence; glumes usually 3, usually thin and narrow, each with 1 or 2 male flowers. Female spikelets apical on inflorescence; glumes 2, opposite, equal in size, veined, each with 1 female flower, apex 3-lobed or not. Male flowers: anthers 1-3. Female flowers: stigmas 3. Disk present. Nutlet small, globose, with vertical ribs or reticulate, sometimes apically hairy, tightly enclosed in 2 subtending glumes and shed with them.

About six species: tropics into warm temperate regions of both hemispheres; two species in China.

(Authors: Zhang Shuren (张树仁); Gordon C. Tucker, Jeremy J. Bruhl)

Lower Taxon


 

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