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Pakistan | Family List | Poaceae | Poa

Poa stapfiana Bor in Kew Bull. 4:239. 1949. Sultan & Stewart, Grasses W. Pak. 2: 186.1959; Bor, Grasses Burma Ceyl. Ind. Pak. 560.1960; Bor in Rech.f., Fl. Iran. 70: 39.1970.

  • Poa trewula Stapf

    Stoloniferous perennial; culms 20-60cm high, erect or ascending from a procumbent base, rooting from the lower nodes. Leaf-blades flat or folded, 5-14 cm long, 1-5mm wide, firm or flaccid, gradually or abruptly tapering to a sharp point, scabrid on the margins, sometimes scaberulous on the upper surface; ligule blunt, 2.5-5mm long. Panicle pyramidal, 12-25cm long, loose; branches paired, long, flexous, capillary, widely spreading, smooth. Spikelets 3-6-flowered, elliptic-oblong, 4-6mm long, green or glaucous, crowded at the tips of the branches; glumes unequal, the lower lanceolate to elliptic, 2.8-3.8mm long, 1(-3)-nerved, the upper oblong to oblanceolate, 3-4.5mm long, 3-nerved; lemmas oblong in side-view, 3-4.5mm long, subacute, ciliate on the keel and marginal nerves, sparsely to quite densely hairy on the surface between the nerves, with scanty or copious wool at the base; palea shorter than the lemma, the keels long-ciliate below, scabrid above; anthers 0.8-1.5mm long.

    Fl. & Fr. Per.: July-September.

    Syntypes: Kashmir, Jacquemont ; Northwest India, Duthie; and others (K).

    Distribution: Pakistan (N.W.F.P. & Kashmir); Western Himalayas.



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