Panicum hayatae

HABIT Annual. Culms rambling; 60–100 cm long. Lateral branches sparse. Leaf-sheaths outer margin hairy. Ligule a ciliolate membrane; 0.5 mm long. Leaf-blades lanceolate; 9–14 cm long; 9–15 mm wide. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 12–16 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; obtuse; 3 mm long; falling entire.

GLUMES Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume oblong; 0.66–0.75 length of spikelet; membranous; without keels; 3 -veined. Lower glume apex acute. Upper glume oblong; 1 length of spikelet; membranous; without keels; 9 -veined. Upper glume lateral veins prominent. Upper glume apex obtuse.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; scarious; 9 -veined; prominently veined; obtuse. Fertile lemma ovate; dorsally compressed; 2.5 mm long; indurate; grey; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate.

FLOWER Anthers 1.6 mm long.

DISTRIBUTION Asia-tropical: Indo-China and Malesia.

NOTES Paniceae. WDC 1994.

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