GrassBase - The Online World Grass Flora

Descriptions

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

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

Sporobolus uniglumis

HABIT Annual; caespitose. Culms erect, or geniculately ascending; 20–30 cm long. Ligule a fringe of hairs. Leaf-blades lanceolate; 3–8 cm long; 3–6 mm wide. Leaf-blade margins ciliate; hairy at base.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 3–6 cm long. Primary panicle branches whorled at most nodes.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 1.2–1.6 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes one the lower absent or obscure, or two; deciduous; dissimilar; reaching apex of florets. Lower glume ovate; 0–0.2 mm long; 0–0.1 length of upper glume; hyaline; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 1.2–1.6 mm long; 1 length of adjacent fertile lemma; membranous; grey; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume surface hispidulous. Upper glume apex acute.

FLORETS Fertile lemma ovate; 1.2–1.6 mm long; membranous; grey; without keel; 1 -veined. Lemma surface hispidulous. Lemma apex acute. Palea 2 -veined. Palea keels approximate.

FLOWER Anthers 3; 0.4–0.6 mm long.

FRUIT Caryopsis with free soft pericarp; ellipsoid, or obovoid; 0.7–0.8 mm long.

DISTRIBUTION Africa: west-central tropical, east tropical, and southern tropical.

NOTES Eragrostideae. FTEA.

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