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Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Poa filiculmis
HABIT Perennial; caespitose; clumped loosely. Culms erect; 30–35 cm long. Culm-internodes antrorsely scabrous. Lateral branches lacking. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane; 1–2 mm long; entire, or lacerate; truncate. Leaf-blades flat, or convolute; 1–3.5 cm long; 1 mm wide. Leaf-blade surface scabrous.
INFLORESCENCE Inflorescence a panicle.
Panicle contracted; lanceolate; 3–6 cm long; 1–1.5 cm wide.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 3–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus woolly.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3–4 mm long; membranous; 1-keeled. Lower glume apex acute. Upper glume ovate; 3–4 mm long; membranous; 1-keeled. Upper glume apex acute.
FLORETS Fertile lemma ovate; 4 mm long; membranous; keeled; 5 -veined. Lemma midvein ciliate. Lemma lateral veins distinct. Lemma surface pubescent; hairy below. Lemma margins ciliate. Lemma apex acute. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; membranous. Anthers 3; 1.5 mm long.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform.
DISTRIBUTION Asia-temperate: Siberia and Soviet far east.
NOTES Poeae. Roshev 1995.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.