Oryza nivara Sharma et Shastry

Morphological characteristics

Annual, short to intermediate height (usually <2 m) grass; panicles usually compact, rarely open; spikelets large, 6-10.4 mm long and 1.9-3.4 mm wide, with strong awn (4-10 cm long); anthers 1.5-3 mm long.

Chromosome number

2n=2x=24

Genome

AA

Distribution

Bangladesh, Cambodia, China, India, Laos, Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, and Vietnam.


 

Habitat: Found in swampy areas, at edge of pond and tanks, beside streams, in ditches, in or around rice fields. Grows in shallow water up to 0.3 m, in seasonally dry and open habitats.


Plants growing in natural habit near field, Nepal


A panicle, in GRC’s screen house, Philippines


Habitat: around a pond, Cambodia


Plants growing in a seasonal swamp, Cambodia


Plants occurring in a dry pond, Cambodia