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FOC | Family List | FOC Vol. 22 | Poaceae

79. Koeleria Persoon, Syn. Pl. 1: 97. 1805.

草属 qia cao shu

Authors: Zhen-lan Wu & Sylvia M. Phillips

Perennials, tufted, sometimes shortly rhizomatous. Culms unbranched. Leaf sheaths of tillering leaves usually closed; leaf blades mainly basal, narrow, flat, or inrolled and filiform to setaceous; ligule membranous. Inflorescence a dense spikelike panicle, shining; branches short, erect, hispidulous to woolly. Spikelets with 2 to several florets; rachilla puberulous or glabrous, disarticulating below each floret; glumes narrow, unequal or subequal, equaling or shorter than florets, strongly keeled, thinly herbaceous, 1–3(–5)-veined, margins broad, hyaline, shining; floret callus small, glabrous or very shortly hairy; lemmas membranous or papery, strongly compressed, sharply keeled, 3–5-veined, margins hyaline, shining, apex obtuse to acuminate, awnless or with a subapical mucro; palea subequaling lemma, hyaline, gaping free from lemma margins. Stamens 3. Ovary glabrous. Endosperm sometimes liquid.

About 35 species:temperate regions throughout the world, also on tropical mountains; four species in China.

This is a genus of narrowly defined, closely related species. They provide good forage in mountain steppe.

1 Lemmas shortly awned, awns 0.5–2.5 mm; rachilla with 0.3–1 mm hairs.   1 K. litvinowii
+ Lemmas awnless or minutely mucronate; rachilla glabrous or puberulous   (2)
2 (1) Glumes and lemmas pilose.   2 K. altaica
+ Glumes and lemmas glabrous, smooth or scabrid   (3)
3 (2) Plant densely tufted; culms hairy mainly below panicle; spikelets punctate scabrid.   3 K. macrantha
+ Plant with short rhizomes, forming loose mats; culms hairy throughout; spikelets smooth.   4 K. atroviolacea

Lower Taxa


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