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FOC | Family List | FOC Vol. 22 | Poaceae | Poa

30. Poa remota Forselles, Linn. Inst. Skrift. 1: 6. 1807.

疏序早熟禾 shu xu zao shu he

Poa quadripedalis Ehrhart ex Koeler; P. sudetica Haenke var. remota (Forselles) Fries.

Perennials, loosely tufted, shortly rhizomatous; shoots mainly extravaginal. Culms erect, 50–150 cm tall, 1–3 mm in diam., compressed, smooth or sparsely scabrid, nodes 3–5, 1 or 2 exserted. Leaf sheath with keel winged, 0.4–0.8 mm deep, scabrid, 10–20 cm, about as long as blade, uppermost closed for (1/2–)2/3–9/10 of length; blade light green, flat, moderately thin, 3–11 cm, surfaces smooth or sparsely scabrid, margins densely scabrid, apex slender prow-tipped; ligule 2–3(–3.5) mm, abaxially smooth or sparsely scabrid, apex obtuse, collar margins abruptly flared, scabrid, glabrous or rarely pilulose. Panicle open, 15–30 × 7–20 cm, longest internodes 4–7 cm; branches spreading, 3–7 per node, slender, proximally scabrid angled, distally scabrid all around on angles, longest 7–15 cm with 12–40 spikelets in distal 1/2. Spikelets lanceolate, green, rarely purple tinged, 4.5–6 mm, florets 3–5; vivipary absent; rachilla internodes 0.7–1 mm, densely minutely bumpy; glumes narrowly lanceolate, keel and lateral veins prominently scabrid, area between veins sparsely scabrid, lower glume 2–3 mm, 1(or 3)-veined, upper glume 2.5–3.5 mm, 3-veined; lemmas lanceolate, 3–4.5 mm, veins prominent, edge finely scabrid, apex acute, keel pilulose for 1/3 of length, marginal veins for 1/4, area between veins minutely bumpy to sparsely scabrid, glabrous; callus sometimes webbed, hairs sparse, to 2 mm; palea minutely bumpy to sparsely scabrid, keels densely scabrid. Anthers 1.1–1.6 mm. Fl. and fr. Jun–Jul. 2n = 14.

Moist to wet ground, Picea and Larix forest openings. Xinjiang [Kazakhstan, Russia; Europe].

The occurrence of this species in China is based on a gathering by Regel, determined by Tzvelev. The only voucher so determined seen by us we placed in Poa pratensis.


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