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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.
Eragrostis pusilla
HABIT Annual; caespitose. Culms erect, or geniculately ascending; 10–42 cm long. Ligule an eciliate membrane. Leaf-blades 5–15 cm long; 2–3 mm wide.
INFLORESCENCE Inflorescence a panicle.
Panicle open; elliptic; 8–15 cm long. Primary panicle branches spreading.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 2–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 1–1.5 mm long; breaking up at maturity; rhachilla deciduous; disarticulating below each fertile floret.
GLUMES Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 0.2–0.3 mm long; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.4 mm long; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex obtuse.
FLORETS Fertile lemma oblong; 0.5–0.6 mm long; membranous; keeled; 3 -veined. Lemma lateral veins ribbed. Lemma apex obtuse. Palea keels eciliate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; cuneate; fleshy. Anthers 2; 0.3–0.4 mm long.
FRUIT Caryopsis with adherent pericarp; obovoid. Embryo 0.4 length of caryopsis.
DISTRIBUTION Africa: southern tropical and south.
NOTES Eragrostideae. Gr S Afr 1993.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.