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.

Agrostis micrantha

HABIT Perennial; caespitose. Culms erect; 50–100 cm long. Culm-internodes scaberulous. Leaf-sheaths scaberulous. Ligule an eciliate membrane; 2–3 mm long. Leaf-blades 8–15 cm long; 3–4 mm wide. Leaf-blade surface scaberulous.

INFLORESCENCE Inflorescence a panicle.

Panicle open, or contracted; elliptic; 10–25 cm long. Primary panicle branches whorled at lower nodes. Panicle branches capillary; scabrous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels clavate.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 1.75 mm long; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus glabrous.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 2 mm long; 1–1.1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 1.75–2 mm long; 1.2–1.3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma oblong; 1.5 mm long; hyaline; without keel; 5 -veined. Lemma apex truncate; muticous. Palea 0.2–0.5 mm long; 0.1–0.33 length of lemma; hyaline.

FLOWER Lodicules 2; membranous. Anthers 3; 0.6 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: China. Asia-tropical: India and Indo-China.

NOTES Aveneae. Fl Assam 1993.

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