Morphological characteristics

Annual and erect grass usually 1-2 m tall; panicles usually compact or seldom open, rarely have secondary branching; spikelets slender, 7.2-9.6 mm long and 2-2.8 mm wide, with strong awns (thick at base), about 7-13 cm long; anthers 1.5-2.5 mm long.

Chromosome number

2n=2x=24

Genome

AA

Distribution

Australia, Indonesia (Irian Jaya), and Papua New Guinea.

Habitat

Found at the edges of freshwater lagoons, rivers, temporary pools, and swamps in 15-20 cm of water. Grows in black and clay soils in open habitats.

Habitat: seasonally wet depression in loose forest, Indonesia

Habitat: seasonal swamp, Australia

A panicle, in GRC’s screen house, Philippines