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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.
Alopecurus glacialis
HABIT Perennial; caespitose. Butt sheaths glabrous. Culms erect; 35–70 cm long; 2 -noded. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1–1.5 mm long; obtuse. Leaf-blades 2–15 cm long; 1–2.7 mm wide. Leaf-blade surface scaberulous; rough adaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
INFLORESCENCE Inflorescence a panicle; subtended by an inflated leaf-sheath.
Panicle spiciform; oblong, or ovate; 0.9–2.5 cm long; 0.6–0.9 cm wide. Primary panicle branches accrescent to a central axis; with evident branchlets on axis. Panicle axis with rounded ribs.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 3.5–5.5 mm long; falling entire.
GLUMES Glumes connate along margins below; 0.1 of their length connate; similar; exceeding apex of florets; recurved at apex. Lower glume lanceolate; 3.5–5.5 mm long; 1 length of upper glume; membranous; purple; 1-keeled; 3 -veined. Lower glume primary vein ciliate. Lower glume surface pilose. Lower glume apex setaceously attenuate; mucronate. Upper glume lanceolate; 3.5–5.5 mm long; 1.1–1.3 length of adjacent fertile lemma; membranous; purple; 1-keeled; 3 -veined. Upper glume primary vein ciliate. Upper glume surface pilose. Upper glume apex setaceously attenuate; mucronate.
FLORETS Fertile lemma oblong; 3–4 mm long; membranous; keeled; 5 -veined. Lemma margins connate below. Lemma apex erose; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.33–0.5 way up back of lemma; straight, or geniculate; 3–4.4 mm long overall; not or scarcely exserted from spikelet; without a column, or with twisted column. Palea present, or absent or minute; linear; 2–2.6 mm long; 0.6–0.7 length of lemma; 1 -veined; 1-keeled.
FLOWER Lodicules absent. Anthers 3; 2–3.5 mm long. Stigmas terminally exserted; pubescent. Ovary glabrous.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a spikelet.
DISTRIBUTION Asia-temperate: Caucasus and western Asia.
NOTES Aveneae. Fl Turk 1993.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
