Isachne smitinandiana

HABIT Annual. Culms erect; 6–8 cm long. Leaf-sheaths pilose. Ligule a fringe of hairs. Leaf-blades lanceolate, or ovate; 1.2–2 cm long; 2.5–5 mm wide; stiff. Leaf-blade surface pilose; sparsely hairy. Leaf-blade margins cartilaginous; scaberulous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 2–3.5 cm long. Primary panicle branches 1–2 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 1.5–5 mm long.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets oblong, or obovate; dorsally compressed; obtuse; 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; 1.5 mm long; 0.75 length of spikelet; membranous; without keels. Lower glume surface pubescent; hairy above. Lower glume apex acute. Upper glume ovate; 1.5 mm long; 0.75 length of spikelet; membranous; without keels. Upper glume surface pubescent; hairy above. Upper glume apex acute.

FLORETS Fertile lemma elliptic; 1.8 mm long; coriaceous; yellow; without keel. Lemma margins involute. Lemma apex obtuse. Palea coriaceous; 2 -veined.

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: Indo-China.

NOTES Isachneae. Camus 1994.

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