Agrostis griffithiana

HABIT Perennial; caespitose. Culms erect; 50–100 cm long. Ligule an eciliate membrane; 2–3 mm long; scaberulous on abaxial surface; truncate. Leaf-blades 15–25 cm long; 3–4 mm wide; coriaceous. Leaf-blade surface smooth.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 6–20 cm long. Primary panicle branches appressed; 2–5 -nate; 5–10 cm long. Panicle branches capillary; smooth, or scaberulous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3–4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 3–4 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3–4 mm long; 1.3–1.4 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma ovate; 2–3 mm long; hyaline; without keel; 5 -veined. Lemma lateral veins excurrent. Lemma surface pubescent. Lemma apex truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.1–0.5 way up back of lemma; geniculate; 5–6 mm long overall; clearly exserted from spikelet; with twisted column. Palea 1 length of lemma; hyaline.

FLOWER Lodicules 2; membranous. Anthers 3; 1.25 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: India.

NOTES Aveneae. Fl Assam 1993.

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