Agrostis procera Retzius, Observ. Bot. 4: 19. 1786; A. ramosa (Retzius) Poiret; Eriochloa annulata (Flüggé) Kunth; E. hackelii Honda; E. ramosa (Retzius) Kuntze; Milium ramosum Retzius; Paspalum annulatum Flüggé.

Annual or short-lived perennial. Culms erect or geniculately ascending, branching, 30–150 cm tall, nodes pubescent. Leaf sheaths keeled, glabrous; leaf blades linear, 8–20 × 0.2–0.8 cm, glabrous, apex acuminate. Inflorescence axis 10–20 cm; racemes several, 3–7 cm, loosely ascending, bare of spikelets proximally; spikelets mostly paired, single toward raceme apex; axis and rachis very slender, puberulous, pedicels usually without setae, those of a pair often partially connate. Spikelets lanceolate, 3–4 mm, herbaceous, sharply acute, basal swelling ca. 0.3 mm and often purplish; lower glume minute; upper glume and lower lemma 5-veined, pilose with appressed silky hairs, lower palea absent; upper lemma rugulose-punctulate, mucro 0.3–0.5 mm. Fl. and fr. summer–autumn. 2n = 36.

This species is a good forage grass.

Streams, moist places. Fujian, Guangdong, Hainan, Taiwan [India, Indonesia, Laos, Malaysia, Myanmar, New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Australia; introduced in Africa, tropical America].