All Floras      Advanced Search
FOC Vol. 22 Page 571, 591 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 22 | Poaceae

192. Pogonatherum P. Beauvois, Ess. Agrostogr. 56. 1812.

金发草属 jin fa cao shu

Authors: Shou-liang Chen & Sylvia M. Phillips

Pogonopsis J. Presl.

Perennials, densely tufted. Culms slender, branching, drooping or trailing, several- to many-noded. Leaf blades linear or linear-lanceolate, lower blades deciduous; ligule a membranous ciliate rim. Inflorescence a single raceme borne on a flexuous peduncle, racemes many, terminating the culm branches; raceme fragile, sessile and pedicelled spikelets of a pair similar, both fertile; rachis internodes and pedicels shorter than spikelets, linear with expanded apex, ciliate. Sessile spikelet oblong, laterally compressed; callus obtuse, bearded with long silky hairs; glumes subequal, membranous or thinly cartilaginous; lower glume strongly convex, 3–5-veined, apex truncate, 2–3-lobed, ciliate; upper glume slightly longer than lower glume, strongly keeled, apex 2-toothed, a long, fine, flexuous awn from sinus; lower floret male with palea or reduced to a hyaline lemma or absent; upper lemma oblong, hyaline, 2-lobed for 1/3–1/2 its length, awned; awn long, very slender, geniculate near base; upper palea subequal to lemma. Stamens 1–2. Pedicelled spikelet often smaller, lacking a lower floret, upper floret bisexual or female.

Four species: India to SE Asia, NE Australia, and Polynesia; three species (one endemic) in China.

1 Sessile spikelet 1.3–2 mm; stamen 1; awn of upper lemma strongly reflexed above base.   1 P. crinitum
+ Sessile spikelet 2.3–3 mm; stamens 2; awn of upper lemma slightly bent above base   (2)
2 (1) Lower glume of pedicelled spikelet awnless; lower floret of sessile spikelet staminate; anthers ca. 1.8 mm.   2 P. paniceum
+ Lower glume of pedicelled spikelet awned; lower floret of sessile spikelet absent or reduced to a small lemma; anthers ca. 0.5 mm.   3 P. biaristatum

Lower Taxa


Related Objects  
  • Pogonatherum.pdf
  • PDF

    Flora of China @
    Browse by
    Advanced Search

    Flora of China Home




     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |