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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 textilis
HABIT Perennial; caespitose. Rhizomes short. Butt sheaths pubescent; persistent and investing base of culm; with compacted dead sheaths. Culms erect, or geniculately ascending; 5–70 cm long. Leaves mostly basal. Leaf-sheaths pubescent. Ligule an eciliate membrane; 0.5–1 mm long; truncate. Leaf-blades filiform, or linear; flat, or convolute; 15–30 cm long; 1–3 mm wide. Leaf-blade surface smooth. Leaf-blade apex acuminate.
INFLORESCENCE Inflorescence a panicle; subtended by an inflated leaf-sheath.
Panicle spiciform; elliptic; 1–3 cm long; 0.6–1.5 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 elliptic; laterally compressed; 4.5–6 mm long; falling entire.
GLUMES Glumes connate along margins below; 0.25 of their length connate; similar; exceeding apex of florets. Lower glume lanceolate; 4.5–6 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein ciliate. Lower glume surface pilose. Lower glume apex acute; mucronate, or awned; 1 -awned. Lower glume awn 1–2 mm long. Upper glume lanceolate; 4.5–6 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein ciliate. Upper glume surface pilose. Upper glume apex acute; mucronate, or awned; 1 -awned. Upper glume awn 1–2 mm long.
FLORETS Fertile lemma oblong; 4–5.5 mm long; membranous; keeled; 5 -veined. Lemma surface pubescent; hairy above. Lemma margins connate below. Lemma apex truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.33 way up back of lemma; geniculate; 8–14(–17) mm long overall; with twisted column. Palea 2.5–4 mm long; 0.6–0.7 length of lemma; 1 -veined; 1-keeled.
FLOWER Lodicules absent. Anthers 3; 3.5–4 mm long. Stigmas terminally exserted; pubescent. Ovary glabrous.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a spikelet.
DISTRIBUTION Asia-temperate: Soviet Middle Asia, Caucasus, and western Asia.
NOTES Aveneae. Fl Turk 1993.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
