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Taiwan Gramineae | Family List | Poaceae

Trisetum Pers., Syn. Pl. 1: 97. 1805.

三毛草屬

Trisetum spicatum var. formosanum

Credit: CC Hsu, 1975 Taiwan Grasses

Perennial. Panicle moderatly dense to spiciform, rarely open. Spikelet 2-several-flowered, the rhachila hairy; glumes mostly unequal and shorter than spikelet; lemmas membranous to thinly coriaceous, strongly compressed and distincly keeled, bidentate or sometimes bisetulate. dorsally awned from below middle, the awn geniculate or merely reflexed; palea gaping, silvery. Ovary glabrous; endosperm sometimes liquid.

All temperate regions except Africa.

Species ± 70, Weedy places, meadows, mountain slopes and alpine grassland.

LITERATURES
Chrtek Jr., J. 1990. Three new species of Trisetum (Poaceae) from China. Fol. Geobot. & Phytotax. 25: 333--335.
Randall, J.L. & K.W. Hilu. 1986. Biosystematic studies of North American Trisetum spicatum (Poaceae). Syst. Bot. 11: 567--578, 8 fig, 4 tab. --- Very variable, infraspecific taxa, or spp for the hexaploids not supported


KEY TO SPECIES

1 Panicle not contracted, main axis and pedicels not pubescent, lower glume near half the length of the upper glume.   Trisetum bifidum
+ Panicle contracted, main axis pubescent, lower glume slightly shorter than the upper glume.   var. formosanum

Lower Taxa


 

Related Objects  

Flora of China  
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