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Pakistan | Family List | Poaceae | Poa

Poa trivialis Linn., Sp. Pl. 1:67. 1753. Boiss., Fl. Or.5:602.1884; Bor, Fl. Assam 5:70.1950; Bor, Grasses Burma Ceyl. Ind. Pak. 561.1960; Bor. in Towns., Guest & Al-Rawi, Fl. Iraq 9:113.1968; Bor in Rech.f., Fl. Iran. 70:41.1970; Tzvelev, Poaceae URSS 466.1976; Edmondson in Tutin et al., Fl. Eur. 5:161.1980.

Loosely tufted perennial, often with extensively creeping stolons but without rhizomes; culms 20-100cm high, erect or spreading from a procumbent base. Leaf-blades flat, 3-20cm long, 2-4.5(-6)mm wide, rather thin and flaccid, abruptly and sharply pointed, scabrid on the margins and both surfaces, sometimes nearly smooth and shining; ligule pointed, 3.5-10mm long. Panicle ovate-pyra¬midal, (9-)15-25cm long, erect or nodding, very loose or contracted and rather dense; branches in clusters of 3-5(-7) at the lower nodes, scabrid. Spikelets 3-4-flowered, ovate or oblong, 3-4mm long, green, purplish or reddish; glumes unequal, the lower lanceolate, 2-3mm long, 1-nerved, the upper ovate, 2.5-3.5 mm long, 3-nerved; lemmas narrowly oblong in side view, 2.5-3.5mm long, acute, usually ciliate only on the keel, woolly at the base; palea a little shorter than the lemma, scabrid along the keels; anthers 1.5-2mm long.

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

Type locality: Europe.

Distribution: Pakistan (Baluchistan, N.W.F.P. & Kashmir); widespread in temperate regions of the northern hemisphere; extensively introduced elsewhere.

Rough Meadow-grass is so named from its characteristically scaberulous leaf-sheaths. 1700-2700m.


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