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.

Poa paczoskii

HABIT Perennial; caespitose; clumped densely. Culms 25–40 cm long; with 0.5 of their length below uppermost node. Culm-internodes antrorsely scabrous. Leaves mostly basal. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1–2.5 mm long. Leaf-blades 0.7–2.5 mm wide. Leaf-blade surface scabrous.

INFLORESCENCE Inflorescence a panicle. Peduncle antrorsely scabrous above.

Panicle contracted; ovate; 6–10 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–4 fertile florets; with diminished florets at the apex. Spikelets oblong, or ovate; laterally compressed; 3.3–4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.5–3.2 mm long; membranous; 1-keeled. Lower glume apex acute. Upper glume lanceolate; 2.5–3.2 mm long; membranous; 1-keeled. Upper glume apex acute.

FLORETS Fertile lemma ovate; 3–3.6 mm long; membranous; keeled; 5 -veined. Lemma surface pilose; hairy on veins. Lemma apex acute. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3.

DISTRIBUTION Europe: eastern.

NOTES Poeae. Tzvelev 2011.

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