Trisetum micans

HABIT Perennial; caespitose. Culms 40–50 cm long. Ligule an eciliate membrane. Leaf-blades 10–15 cm long; 2–4 mm wide; stiff. Leaf-blade surface glabrous. Leaf-blade apex attenuate.

INFLORESCENCE Inflorescence a panicle. Peduncle pubescent above.

Panicle contracted, or spiciform; linear, or lanceolate; 6–12 cm long. Panicle axis pubescent. Panicle branches pubescent.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with a barren rhachilla extension. Spikelets cuneate; laterally compressed; 6–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 1 mm long; pilose. Floret callus pubescent.

GLUMES Glumes persistent; similar; shorter than spikelet, or reaching apex of florets; thinner than fertile lemma; shiny; gaping. Lower glume lanceolate; 4–5.5 mm long; 0.75–0.8 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume elliptic; 5–6.5 mm long; 1–1.3 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma elliptic; 5 mm long; membranous; shiny; keeled; 5 -veined. Lemma apex dentate; 2 -fid; awned; 3 -awned. Principal lemma awn dorsal; arising 0.75 way up back of lemma; straight; 5 mm long overall. Lateral lemma awns arising on apex of lobes; 0.5 mm long. Palea gaping; hyaline. Palea keels scaberulous.

FLOWER Anthers 3. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-tropical: India.

NOTES Aveneae. WDC 1994.

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