GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Crypsis schoenoides

HABIT Annual. Culms decumbent; 1–30 cm long. Lateral branches ample. Leaf-sheaths outer margin glabrous. Ligule a fringe of hairs. Collar glabrous. Leaf-blades deciduous at the ligule; 0.5–12 cm long; 1–5 mm wide; stiff; glaucous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle; subtended by an inflated leaf-sheath, or a spatheole; embraced at base by subtending leaf.

Panicle capitate; elliptic, or oblong; 0.5–3 cm long. Primary panicle branches accrescent to a central axis; with lateral stumps on axis.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 2.5–4 mm long; falling entire.

GLUMES Glumes similar; shorter than spikelet. Lower glume lanceolate; 2.5–4 mm long; 0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein eciliate. Lower glume lateral veins absent. Lower glume margins eciliate. Lower glume apex acute. Upper glume lanceolate; 2.5–4 mm long; 0.9 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein eciliate. Upper glume lateral veins absent. Upper glume margins eciliate. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; laterally compressed; 2.5–4 mm long; membranous; keeled; 1 -veined. Lemma apex acute. Palea 2 -veined.

FLOWER Lodicules absent. Anthers 3; 0.9 mm long.

FRUIT Caryopsis with free soft pericarp; ellipsoid to obovoid; 1.5 mm long; apex unappendaged.

DISTRIBUTION Europe: northern, central, southwestern, southeastern, and eastern. Africa: north, west tropical, southern tropical, south, and western Indian ocean. Asia-temperate: Siberia, Soviet Middle Asia, Caucasus, western Asia, Arabia, China, and Mongolia. Asia-tropical: India. Australasia: Australia. North America: north-central USA, northeast USA, southwest USA, southeast USA, and Mexico.

NOTES Eragrostideae. FTEA.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.