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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 diversifolia
HABIT Perennial; caespitose. Culms 42–74 cm long. Culm-internodes terete. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1–3 mm long; truncate. Leaf-blades involute; 0.8–1.5 mm wide. Leaf-blade apex abruptly acute; hooded.
INFLORESCENCE Inflorescence a panicle.
Panicle open; ovate; dense; 10–18 cm long. Primary panicle branches 3–5 -nate. Panicle branches scabrous.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 5–6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4–5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes eventually visible between lemmas. Floret callus glabrous.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 4 mm long; 1 length of upper glume; membranous; 1-keeled. Lower glume apex acute. Upper glume ovate; 4 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled. Upper glume apex acute.
FLORETS Fertile lemma ovate; elliptic in profile; 4 mm long; membranous; keeled; 5 -veined. Lemma surface scabrous; rough on veins. Lemma apex acute. Palea keels scabrous; adorned all along. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; membranous. Anthers 3.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform.
DISTRIBUTION Asia-temperate: western Asia.
NOTES Poeae. Fl Turk 1995.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.