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.

Paspalum hallasanense

HABIT Annual; caespitose. Culms erect; 35 cm long. Leaf-sheaths 4 cm long; glabrous on surface. Ligule an eciliate membrane; 1.5 mm long. Leaf-blades lanceolate; 10–13 cm long; 3 mm wide. Leaf-blade surface glabrous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 2(–3); paired; unilateral; 2–6 cm long. Rhachis narrowly winged; angular. Spikelet packing abaxial; regular; 2 -rowed.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; turgidly plano-convex; 1.7 mm long; 1 mm wide; falling entire.

GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume oblong; 1.7 mm long; 1 length of spikelet; membranous; without keels; 3–5 -veined. Upper glume surface pubescent. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; oblong; 1 length of spikelet; membranous; 5–7 -veined. Fertile lemma ovate; gibbous; 1.7 mm long; coriaceous; purple; without keel. Lemma margins involute. Palea involute; coriaceous.

FLOWER Lodicules 2; truncate. Anthers 3; purple.

FRUIT Caryopsis with adherent pericarp; ellipsoid; 1.4 mm long.

DISTRIBUTION Asia-temperate: eastern Asia.

NOTES Paniceae. Lee 2009.

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