Isachne schmidtii

HABIT Annual. Culms prostrate; 5–20 cm long. Leaf-sheaths glabrous on surface; outer margin hairy. Ligule a fringe of hairs; 1 mm long. Leaf-blades lanceolate, or ovate; 1.5–5 cm long; 5–9 mm wide. Leaf-blade surface glabrous, or hispid. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open, or contracted; ovate; 1–4 cm long. Primary panicle branches ascending. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels clavate.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate, or orbicular; dorsally compressed; 2.5–3.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes deciduous; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 2.5–3.5 mm long; 1 length of upper glume; 1 length of spikelet; membranous; without keels. Lower glume surface hispid. Lower glume apex acute. Upper glume ovate; 2.5–3.5 mm long; 1.3–2 length of adjacent fertile lemma; membranous; without keels. Upper glume surface hispid. Upper glume apex acute.

FLORETS Fertile lemma elliptic, or ovate; 1.7 mm long; coriaceous; without keel. Lemma margins involute; eciliate, or pubescent. Lemma apex obtuse. Palea coriaceous; 2 -veined.

FLOWER Anthers 3.

DISTRIBUTION Asia-tropical: Indo-China and Papuasia.

NOTES Isachneae. Reeder 1993.

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