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 albertii

HABIT Perennial; caespitose; clumped loosely, or moderately, or densely. Basal innovations extravaginal. Culms 7–15(–25) cm long; 1–2 -noded. Culm-internodes antrorsely scabrous. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths antrorsely scabrous; glabrous on surface. Ligule an eciliate membrane; 1–2.5(–3.5) mm long; obtuse. Leaf-blades flat, or conduplicate, or involute; (0.5–)1.5–2(–3) cm long; (0.5–)1.5–2(–3) mm wide. Leaf-blade surface scabrous; glabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; oblong; (2–)4–6 cm long; 0.5–1.5 cm wide. Primary panicle branches 2–5 -nate. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 7–10 mm long; with hairs extending 3–4(–6) mm beyond apex; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth, or scaberulous. Floret callus glabrous.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 1.5–2 mm long; 0.75 length of upper glume; membranous; 1-keeled; 1–3 -veined. Lower glume lateral veins obscure. Lower glume apex acute. Upper glume lanceolate; 2–2.5 mm long; 0.5–0.66 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma ovate; elliptic in profile; 3–4.5 mm long; membranous; keeled; 5 -veined. Lemma surface glabrous, or pubescent; hairy all along. Lemma apex acute. Palea keels ciliolate; adorned in the middle. Palea surface smooth. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 1.2–1.5 mm long.

DISTRIBUTION Asia-temperate: Soviet Middle Asia and China. Asia-tropical: India.

NOTES Poeae. Fl China 2007.

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