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.

Cleistogenes nedoluzhkoi

HABIT Perennial; caespitose. Culms erect; 50–100 cm long. Ligule a ciliolate membrane. Leaf-blades linear, or lanceolate; 3–15 cm long; 4–10 mm wide. Leaf-blade surface glabrous; hairless throughout.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 2–3; borne along a central axis; unilateral. Spikelet packing lax.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–5 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 6–10 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; shorter than spikelet. Lower glume lanceolate; 1.2–1.6 mm long; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Upper glume ovate; 1.5–2 mm long; 0.8 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; 6–7 mm long; membranous; keeled; 5 -veined. Lemma surface pilose; hairy at base. Lemma apex awned; 1 -awned. Principal lemma awn 6–10 mm long overall. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; cuneate; fleshy. Anthers 3.

CLEISTOGENES AND VIVIPARY Cleistogenes present; in upper sheaths; 4–5 mm long.

DISTRIBUTION Asia-temperate: Soviet far east.

NOTES Eragrostideae. Tsvelev 2005.

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