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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.
Colpodium oreades
HABIT Perennial; caespitose. Culms erect, or geniculately ascending; 4–30 cm long. Ligule an eciliate membrane; 2–5 mm long. Leaf-blades flat, or conduplicate; 2–12 cm long; 1–4 mm wide. Leaf-blade apex obtuse.
INFLORESCENCE Inflorescence a panicle.
Panicle contracted; linear; 1–8 cm long. Primary panicle branches appressed; bearing spikelets almost to the base.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 4–6.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
GLUMES Glumes persistent; similar; exceeding apex of florets; similar to fertile lemma in texture; gaping. Lower glume elliptic; 1 length of upper glume; membranous; much thinner above; 1-keeled; keeled below; 3 -veined. Lower glume lateral veins all falling short of apex. Lower glume apex obtuse. Upper glume elliptic; 1.1 length of adjacent fertile lemma; membranous; much thinner above; with hyaline margins; 1-keeled; keeled below; 3 -veined. Upper glume apex obtuse.
FLORETS Fertile lemma elliptic; 3.5–4.5 mm long; without keel; 3 -veined. Lemma lateral veins less than two thirds length of lemma. Lemma surface glabrous. Lemma apex erose; obtuse. Palea keels smooth.
FLOWER Anthers 0.6–0.8 mm long.
FRUIT Hilum elliptic.
DISTRIBUTION Africa: east tropical.
NOTES Poeae. FTEA.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.