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.

Colpodium violaceum

HABIT Perennial; caespitose. Stolons present. Culms erect; 7–15 cm long. Ligule an eciliate membrane. Leaf-blades conduplicate; 2–4 cm long; 0.5–1 mm wide. Leaf-blade surface glabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; pyramidal; 2–4 cm long; 1–3 cm wide. Primary panicle branches spreading; 2–3 -nate.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets cuneate; laterally compressed; 3–3.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.

GLUMES Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture; gaping. Lower glume elliptic; 2.75–3 mm long; 1 length of upper glume; membranous; much thinner above; much thinner on margins; purple; 1-keeled; keeled below; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume elliptic; 2.75–3 mm long; 0.75–0.8 length of adjacent fertile lemma; membranous; much thinner above; with hyaline margins; purple; 1-keeled; keeled below; 3 -veined. Upper glume lateral veins all falling short of apex. Upper glume apex obtuse.

FLORETS Fertile lemma elliptic; 3.5 mm long; membranous; much thinner above; purple; keeled; 3 -veined. Lemma lateral veins less than two thirds length of lemma. Lemma surface glabrous. Lemma apex erose; obtuse. Palea keels smooth; eciliate.

FLOWER Anthers 3.

FRUIT Hilum elliptic.

DISTRIBUTION Asia-temperate: western Asia.

NOTES Poeae. Fl Iran 1993.

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