Dissochondrus biflorus

HABIT Perennial. Culms 60–120 cm long. Culm-nodes pubescent. Leaf-sheaths keeled. Leaf-sheath auricles erect. Ligule an eciliate membrane. Leaf-blade base with a false petiole. Leaf-blades 15–30 cm long; 10–20 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle. Peduncle pubescent above.

Panicle spiciform; linear; 10–20 cm long. Primary panicle branches simple; sterile at the tips (bristles 5–10mm). Panicle axis with rounded ribs; pubescent.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.5 mm long; pubescent; tip cupuliform.

FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; 2 mm long; falling entire.

GLUMES Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.25–0.33 length of spikelet; membranous; without keels; 3 -veined. Lower glume surface puberulous. Lower glume apex obtuse. Upper glume ovate; chartaceous; without keels; 9 -veined. Upper glume surface puberulous. Upper glume apex acute.

FLORETS Fertile lemma ovate; 2 mm long; coriaceous; shiny; without keel. Lemma margins involute. Lemma apex acute. Palea coriaceous.

DISTRIBUTION Pacific: north-central.

NOTES Paniceae. WDC.

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