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FOC | Family List | FOC Vol. 22 | Poaceae

139. Crypsis Aiton, Hort. Kew. 1: 48. 1789.

隐花草属 yin hua cao shu

Authors: Sheng-lian Lu & Sylvia M. Phillips

Heleochloa Host ex Roemer.

Annuals, low growing. Culms ascending or prostrate, much branched. Leaf blades short, linear to lanceolate, flat or involute; ligule a line of hairs. Inflorescence a very dense panicle, spicate and cylindrical, or ovoid to capitate and then usually subtended by 1 or 2 inflated spathelike leaf sheaths with a reduced blade. Spikelets with 1 floret, strongly laterally compressed, disarticulating below the floret or rarely falling entire; glumes narrow, slightly shorter than lemmas, unequal to subequal, membranous, 1-veined, scabrid or ciliate along keel, acute or with a short awn-point; lemma lanceolate, membranous, 1-veined, awnless; palea similar to lemma, 1–2-veined, splitting at maturity. Lodicules absent. Stamens 2–3. Grain ellipsoid, pericarp free and sometimes swelling when wet.

Nine to twelve species:centered on the Mediterranean region and SW Asia, but extending to C Africa and from Europe to China; introduced elsewhere; two species in China.

Crypsis species occur mainly on periodically wet, often saline soils in semi-arid areas.

1 Inflorescence longer than wide; blade of uppermost leaf clearly demarcated from its sheath; palea 2-veined; stamens 3.   1 C. schoenoides
+ Inflorescence as wide as or wider than long; blade of uppermost leaf continuous with its sheath; palea 1-veined; stamens 2   2 C. aculeata

Lower Taxa


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