Plants annual or perennial; cespitose. Culms 15-150 cm, erect or decumbent and rooting at the lower nodes, erect distally; nodes glabrous or pubescent. Leaves mostly basal; sheaths stiffly pubescent; ligules of hairs or membranous and ciliate; blades linear to lanceolate. Inflorescences terminal, panicles of 4-11 digitate or subdigitate, spikelike branches; branches naked at the base, spikelets in pairs or triplets, lower lemmas and lower glumes closest to the branch axes; disarticulation below the glumes. Spikelets 2.5-7 mm, dorsally compressed, with 2 florets. Glumes acute to shortly awned; lower glumes about 1/2 as long as the spikelets, 1-2-veined; upper glumes equaling the spikelets, 3-5-veined, margins ciliate; lower florets staminate; lower lemmas papery; lower paleas reduced, deeply bifid, 1-veined; upper florets bisexual; upper lemmas stiffly membranous, margins involute, apices attenuate into a mucro or curved awn; anthers 3. Caryopses elliptic. x = 9. Name from the Greek allotrios, belonging to another and opsis, appearance, the spikelets and inflorescence resembling those of Panicum.

Alloteropsis is a genus of five to eight species that are native to tropical Asia and Australia. One species is now established in the Flora region. Alloteropsis semialata (R. Br.) Hitchc. is an important forage species in other parts of the world.

1.   Alloteropsis cimicina (L.) Stapf
Bugseed Grass

Culms 15-75 cm. Sheaths hispid; ligules to 2 mm, membranous and ciliate; blades to 8 cm long, 15-25 mm wide, flat, cordate, hispid abaxially, glabrous adaxially, margins with papillose-based hairs. Panicles with 4-7 digitate branches; branches 2-16 cm. Spikelets 2.7-3.2 mm, subsessile; upper lemmas awned, awns 0.4-1.2 mm. 2n = 36.

Alloteropsis cimicina is native to southeast Asia but has been collected in Alachua and Columbia counties, Florida, and Baltimore, Maryland. Being a weedy species, it should be sought at other disturbed locations along the east coast of the United States.