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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 lanatus
HABIT Perennial; caespitose. Rootstock evident. Butt sheaths pubescent. Culms erect; 3.5–30 cm long; 1 -noded. Culm-internodes distally pubescent. Leaves mostly basal. Leaf-sheaths pubescent. Ligule an eciliate membrane; 1.5–2.5 mm long; acute. Leaf-blades convolute; 1.5–5 cm long; 2–3 mm wide. Leaf-blade surface pubescent; densely hairy; hairy on both sides. Leaf-blade apex obtuse; simple, or apiculate.
INFLORESCENCE Inflorescence a panicle; subtended by an inflated leaf-sheath.
Panicle capitate; ovate, or globose; 0.8–1.5 cm long; 0.8–1.5 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 oblong; laterally compressed; 3.5–5 mm long; falling entire.
GLUMES Glumes connate along margins below; 0.1 of their length connate; similar; exceeding apex of florets. Lower glume lanceolate; 3.5–5 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume primary vein ciliate. Lower glume surface hispid. Lower glume apex acute; awned; 1 -awned. Lower glume awn 1–1.5 mm long. Upper glume lanceolate; 3.5–5 mm long; 1.3–1.5 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein ciliate. Upper glume surface hispid. Upper glume apex acute; awned; 1 -awned. Upper glume awn 1–1.5 mm long.
FLORETS Fertile lemma oblong; 2.4–3.5 mm long; membranous; keeled; 5 -veined. Lemma surface pilose; hairy above. Lemma margins connate below; with 0.1 of their length connate. Lemma apex truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.15–0.2 way up back of lemma; geniculate; 6.5–11 mm long overall; with twisted column. Palea absent or minute.
FLOWER Lodicules absent. Anthers 3; 1.8–2.7 mm long. Stigmas terminally exserted; pubescent. Ovary glabrous.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a spikelet.
DISTRIBUTION Asia-temperate: western Asia.
NOTES Aveneae. Fl Turk 1993.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
