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FOC | Family List | FOC Vol. 22 | Poaceae | Axonopus

2. Axonopus fissifolius (Raddi) Kuhlmann, Comm. Linh. Telegr., Bot. 67(Bot. 11): 87. 1922.

类地毯草 lei di tan cao

Paspalum fissifolium Raddi, Agrostogr. Bras. 26. 1823; Axonopus affinis Chase; A. compressus var. affinis (Chase) M. R. Henderson; Paspalum xizangense B. S. Sun & H. Sun.

Perennial with creeping stolons. Culms compressed, 15–50 cm tall, nodes glabrous. Leaf sheaths compressed, strongly keeled; leaf blades broadly linear, folded, 5–20 × 0.3–0.6 cm, apex obtuse; ligule ca. 0.2 mm. Racemes 2–4, 2-paired, any others spaced slightly below, 3–8 cm, only slightly diverging; rachis glabrous. Spikelets oblong-elliptic, 1.5–2 mm, pilose near margins and apex or subglabrous, apex subacute; upper glume and lower lemma 2–4-veined, midvein absent; upper lemma pale, ovate, as long as spikelet, obtuse with a short apical tuft of hairs; stigmas purple. Fl. and fr. summer–autumn. 2n = 54, 80.

Moist muddy or sandy meadows, naturalized. Taiwan, Xizang [native to tropical America].

This species is similar to Axonopus compressus, but tends to favor rather cooler and more waterlogged situations. It is naturalized in Taiwan and has also been found in Xizang.


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