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.

Poa inconspicua

HABIT Perennial; cushion forming, or mat forming; clumped densely. Basal innovations intravaginal. Culms erect; weak; 1–10 cm long. Lateral branches lacking. Leaves mostly basal. Ligule an eciliate membrane; 0.1–0.25 mm long; 0.1–0.25 mm long on basal shoots; glabrous on abaxial surface; truncate. Leaf-blades ascending, or spreading; filiform; involute; 0.6–2 cm long; 0.3–0.6 mm wide; stiff. Leaf-blade surface smooth. Leaf-blade margins scaberulous. Leaf-blade apex acute.

INFLORESCENCE Inflorescence comprising only a few spikelets; comprising 1 fertile spikelets; shorter than basal leaves.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 2.5–3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 0.5–0.75 mm long; 0.66 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume lateral veins obscure. Lower glume apex acute. Upper glume ovate; 0.85–1.25 mm long; 0.33–0.5 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume lateral veins obscure. Upper glume apex acute.

FLORETS Fertile lemma ovate; elliptic in profile; 2.5–2.6 mm long; membranous; keeled; 0–3 -veined. Lemma lateral veins obscure. Lemma surface smooth; glabrous. Lemma apex acute. Palea keels smooth. Rhachilla extension 1.15–1.35 mm long.

FLOWER Lodicules 2; membranous. Anthers 3; 0.6–0.9 mm long.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-tropical: Papuasia.

NOTES Poeae. Veldkamp 1995.

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