Digitaria abludens (Roem. & Schult.) Veldkamp

The clavate hairs of this species are much finer than those of Digitaria stricta, with a much smaller swelling at the tip. The loosely arranged spikelets and occasionally compound racemes are very characteristic and even if the clustering of the spikelets is a little confusing the species is quite unmistakable.

Annual. Culms erect or ascending, 30–90 cm tall. Leaf sheaths usually glabrous; leaf blades linear or linear-lanceolate, 2–15 × 0.2–0.4 cm, scabrous or papillose-pilose; ligule 1–3 mm. Inflorescence axis 1–4 cm; racemes 2–5, loosely spiculate, divaricate, 3–8 cm; spikelets paired or ternate, or the clusters grading into short branchlets; rachis slenderly triquetrous, not winged, ca. 0.5 mm broad, margins scabrous; pedicels very unequal, smoothly terete, spreading out from rachis, tips disklike. Spikelets elliptic, 1.3–1.7 mm, hairs clavate; lower glume absent; upper glume narrower than spikelet and 1/2–4/5 as long, 3–5-veined, intervein spaces and margins pubescent; lower lemma slightly shorter than spikelet, 5–7-veined, interveins and margins pubescent, tip subrounded; upper lemma slightly protruding, yellowish brown becoming chestnut at maturity with a pale apiculate apex. Anthers 0.4–0.65 mm. Fl. and fr. Jun–Oct. 2n = 36.

Annual; culms 15-90 cm high, erect or geniculately ascending. Leaf-blades 5-15(-25) cm long, 2-5 mm wide. Inflorescence composed of 3-5(-8) simple or branched racemes arranged along a short common axis 14(-6.5) cm long; racemes 2.5-11.5 cm long, the spikelets ternate on a triquetrous, wingless rhachis (sometimes one spikelet arrested, occasionally the longest pedicel branched and bearing 2(3) spikelets); pedicels terete, smooth, with discoid or cupuliform tip, unequal in length and standing out from the rhachis at maturity. Spikelets elliptic, oblong-elliptic or oblong-obovate, 1.3-1.75mm long; lower glume 0; upper glume narrower than the spikelet and half to three-quarters (rarely more) as long, 3(-5)-nerved, with minutely clavate hairs between the nerves; lower lemma a little shorter than the spikelet, 5-7-nerved, pubescent between the nerves with minutely clavate hairs; fruit ellipsoid, apiculate, the tip exceeding the lower lemma, chestnut to brownish-black at maturity.

Tropical Asia.

Hainan, S Henan, Sichuan, Yunnan [Bhutan, India, Indonesia, Malaysia, Myanmar, Nepal, Pakistan, Philippines, Thailand].

Distribution: Pakistan (N.W.F.P. & Kashmir); Nepal and India to Thailand: throughout Indonesia to the Philippines and New Guinea.

700-2000 m

Fl. & Fr. Per.: July-August.

Hill slopes, forest margins; below 2500 m.

Panicum abludens Roemer & Schultes, Syst. Veg. 2: 457. 1817; Digitaria granularis (Trinius ex Sprengel) Henrard; D. pedicellaris (Trinius ex J. D. Hooker) Prain, nom. illeg. superfl.; Paspalum granulare Trinius ex Sprengel; P. pedicellare Trinius ex J. D. Hooker.

Digitaria abludens là một loài thực vật có hoa trong họ Hòa thảo. Loài này được (Roem. & Schult.) Veldkamp mô tả khoa học đầu tiên năm 1973.

粒状马唐（学名：Digitaria abludens）为禾本科马唐属下的一个种。