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.

Festuca polycolea

HABIT Perennial; caespitose. Culms erect; 5–30 cm long; 2 -noded. Lateral branches lacking. Leaf-sheaths open for most of their length; glabrous on surface. Ligule an eciliate membrane; 0.5 mm long. Leaf-blades filiform; conduplicate; 3–8 cm long; 1 mm wide. Leaf-blade venation with continuous uniform subepidermal sclerenchyma layer on the underside. Leaf-blade surface glabrous.

INFLORESCENCE Inflorescence a panicle. Peduncle smooth, or scaberulous above.

Panicle open; lanceolate, or ovate; 2–6 cm long. Primary panicle branches 1–2 -nate; sparsely divided; 1–4 cm long. Panicle axis scabrous. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5–8 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3 mm long; 0.75 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 4 mm long; 0.9 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; 4–5 mm long; chartaceous; without keel; 5 -veined. Lemma surface scaberulous. Lemma apex acute; awned; 1 -awned. Principal lemma awn 2–4 mm long overall. Palea 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2. Anthers 3. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Asia-tropical: India.

NOTES Poeae. Fl Brit India 1994.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.