Cynodon radiatus Roth

The club-shaped tips to the lemma hairs can be seen only under a microscope. This species is easily confused with Cynodon dactylon, from which it differs mainly in the absence of rhizomes. It is genetically isolated from all other species of Cynodon.

Perennial, stoloniferous, widely spreading, without rhizomes. Culms slender, 20–50(–80) cm tall. Leaf sheaths glabrous or pilose at mouth; leaf blades broadly linear, 2.5–10(–15) cm, 3–6 mm wide, glaucous, glabrous, apex acute; ligule ca. 3 mm, membranous, ciliolate on upper edge. Racemes digitate, usually 4–8, 5–10 cm, flexuous, slightly drooping; spikelets overlapping by 1/3–1/2 their length. Spikelets 1.8–2.5 mm; rachilla extension ca. 1 mm, without reduced floret at apex; glumes lanceolate, about half as long as floret, 1-veined, keel scabrous, thickened; lower glume ca. 1 mm; upper glume 1–1.4 mm; lemma as long as spikelet, pilose along keel and lateral veins, hairs sometimes clavate, apex subacute; palea glabrous, keels smooth or rarely scaberulous. Anthers 0.5–0.7 mm. Caryopsis trigonous, laterally compressed. Fl. and fr. Jul–Nov. 2n = 36.

Sunny open places, roadsides. Guangdong (offshore islands), Hainan, Taiwan [Bhutan, India, Indonesia, Malaysia, Myanmar, Nepal, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; N Australia; Madagascar].

Cynodon arcuatus J. Presl in C. Presl; C. dactylon var. in-termedius (Rangachari & Tadulingham) C. E. C. Fischer; C. in-termedius Rangachari & Tadulingham.

Cynodon radiatus là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Roth mô tả khoa học đầu tiên năm 1817.