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FOC | Family List | FOC Vol. 22 | Poaceae

44. Stephanachne Keng, Contr. Biol. Lab. Chin. Assoc. Advancem. Sci., Sect. Bot. 9(2): 134. 1934.

冠毛草属 guan mao cao shu

Pappagrostis Roshevitz.

Perennials. Leaf blades linear. Inflorescence a contracted or spikelike panicle. Spikelets with 1 floret, bisexual; rachilla extension present, short; glumes lanceolate, subequal, longer than floret, membranous to herbaceous, 1–5-veined, apex acuminate; callus short, obtuse, shortly bearded; lemma narrowly ovate, herbaceous or thinly leathery, rounded on back, 5-veined, body pubescent or pilose, apex deeply 2-lobed, lobes acuminate or excurrent into a short awn, a circlet of long hairs across base of lobes, awned from sinus; awn geniculate with twisted column, scabrid throughout; palea narrowly lanceolate, equaling or slightly shorter than lemma, hairy between veins; lodicules 2 or 3, narrowly lanceolate. Stamens 1 or 3, anthers glabrous at apex. Stigmas 2.

Three species: W China, Mongolia, Tajikistan; three species (two endemic) in China.

1 Spikelets dark gray or blackish, 12–15 mm; lemma lobes extended into 4–5 mm awnlets; central awn 10–15 mm   1 S. nigrescens
+ Spikelets yellowish green or tinged purple, 5–9 mm; lemma lobes extended into 0.5–3.5 mm mucros; central awn 6–9 mm   (2)
2 (1) Lemma 3–4 mm; stamens 3.   2 S. pappophorea
+ Lemma 6–7 mm; stamen 1.   3 S. monandra

Lower Taxa


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