Isachne oreades

HABIT Perennial. Culms rambling; 30–40 cm long. Ligule a fringe of hairs. Leaf-blades lanceolate; 5–8 cm long; 5–10 mm wide.

INFLORESCENCE Inflorescence a panicle; embraced at base by subtending leaf.

Panicle open; ovate; 7–15 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; obtuse; 2–2.2 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes deciduous; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 1.6 mm long; 0.75 length of spikelet; membranous; without keels; 7 -veined. Lower glume apex obtuse. Upper glume ovate; 1.6 mm long; 0.75 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex obtuse.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret elliptic; 2–2.2 mm long; herbaceous; acute. Fertile lemma ovate; 1.5 mm long; coriaceous; without keel. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: India.

NOTES Isachneae. WDC 1994.

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