Gold Grass

This is a more delicate species than Pogonatherum paniceum, forming a uniform tuft lacking dense bunches of branchlets, with tiny spikelets and strongly bent lemma awns.

This species is used medicinally.

This is a less robust plant than Pogonatherum paniceum with smaller spikelets and longer callus hairs. It grows in tufts along tracks and banks in deep forests and among rocks in rivers and streams, usually in the shade; ascending to 1500 m.

Perennials; culms tufted, erect, 3-6-noded, nodes bearded. Ligule short, ciliated. Inflorescence a single raceme, 1.5-3 cm long; rachis-joints ciliated, about 3/5 as long as the spikelet. Spikelets paired, dimorphic, the pedicellate spikelet smaller than the sessile one, both with 2 long awns of about 1.5-2.5 mm long. Sessile spikelets oblong, about 1.8-2 mm long; glumes papery; lower glume truncate, fringed, about 1.8 mm long, 2-nerved, awnless; upper glume with a longer awn, 1-nerved, as long as the lower, or slightly longer; lemma membranous; lower lemma oblong-lanceolate, nerves obscure, about 1.2 mm long, 2-cleft, awnless, palea wanting; upper lemma as long as the lower, with a long awn; upper palea membranous, filiform, about 1-1.8 mm long; stamen 1.

Slender perennial; culms wiry, weak, often trailing, 10-30 cm long. Leaf-blades 1-4 cm long, 1-3 mm wide. Racemes 1-3.cm long, dense, borne upon a flexuous peduncle, bearing numerous long delicate yellow-brown awns. Spikelets narrowly elliptic-oblong, 13-2 mm long, the callus bearded with white hairs 2(-3) mm long; lower glume a little shorter than the spikelet; lower floret reduced to a hyaline lemma or wanting; upper glume and upper lemma bearing slender flexuous awns 8-20 mm long; stamen 1 (rarely 2),

Culms erect or geniculate, sometimes trailing, very slender, 10–30 cm tall, 0.5–0.8 mm in diam., branching from near base. Leaf sheaths glabrous or puberulous, mouth long ciliate; leaf blades 1.5–5 × 0.1–0.4 cm, scaberulous-puberulous, apex acute. Raceme 1.5–3 cm (excluding awns), yellowish; rachis internodes and pedicels 1/3–2/3 spikelet length, hairs silky white. Sessile spikelet 1.3–2 mm, membranous; callus hairs equal to or slightly longer than spikelet; lower glume scabrid on back, apex ciliate with ca. 0.2 mm hairs; upper glume awn 1.5–1.8 cm; lower floret absent or only lemma present; awn of upper lemma 1.8–2.4 cm, strongly geniculate near base, column very short, dark brown, limb fine, diverging at right angle or more from spikelet. Stamen 1, anther ca. 1 mm. Pedicelled spikelet similar to sessile but smaller; lower glume awnless. Fl. and fr. May–Sep.

Himalaya, India, Burma, Thailand, Indo-China, China, Japan, Malaysia.

Distributed in India, ascending in the hills to 1,500 m, extending to China, Malaysia and Japan.

Distribution: Pakistan (Punjab & N.W.F.P.); Afghanistan and India to Japan and the Solomon Islands.

Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Malaysia, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; Australia (Queensland)].

700-1700 m

Mountain slopes, forests, moist places along roadsides and streams; below 2000 m.

Andropogon crinitus Thunberg in Murray, Syst. Veg., ed. 14, 903. 1784; A. monandrus Roxburgh; Homoplitis crinita (Thunberg) Trinius; Ischaemum crinitum (Thunberg) Trinius; Pogonatherum saccharoideum P. Beauvois var. crinitum (Thunberg) F. N. Williams; P. saccharoideum var. monandrum (Roxburgh) Hackel.

Andropogon crinitus Thunb., Fl. Jap, 40. pl. 7. 1784.

Perennials, Terrestrial, not aquatic, Stems trailing, spreading or prostrate, Stems nodes swollen or brittle, Stems mat or turf forming, Stems terete, round in cross section, or polygonal, Stems branching above base or distally at nodes, Stem internodes solid or spongy, Stems with inflorescence less than 1 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves pseudo-petiolate, petiole attached to sheath, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath hairy, hispid or prickly, Leaf sheath hairy at summit, throat, or collar, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, Leaf blades more or less hairy, Ligule present, Ligule a fringed, ciliate, or lobed membrane, Inflorescence t erminal, Inflorescence a dense slender spike-like panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence single raceme, fascicle or spike, Flowers bisexual, Flowers unisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets with 2 florets, Spikelets paired at rachis nodes, Spikelets in paired units, 1 sessile, 1 pedicellate, Pedicellate spikelet well developed, staminate, Spikelets bisexual, Spikelets unisexual, Spikelets disarticulating below the glumes, Spikelets falling with parts of disarticulating rachis or pedicel, Rachilla or pedicel hairy, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glume equal to or longer than spikelet, Glumes awned, awn 1-5 mm or longer, Glumes 1 nerved, Lemmas t hin, chartaceous, hyaline, cartilaginous, or membranous, Lemma 1 nerved, Lemma glabrous, Lemma apex dentate, 2-fid, Lemma distinctly awned, more than 2-3 mm, Lemma with 1 awn, Lemma awn 1-2 cm long, Lemma awn 2-4 cm long or longer, Lemma awn from sinus of bifid apex, Lemma awn once geniculate, bent once, Lemma margins thin, lying flat, Lemma straight, Stamens 1, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

Pogonatherum crinitum là một loài thực vật có hoa trong họ Hòa thảo. Loài này được (Thunb.) Kunth miêu tả khoa học đầu tiên năm 1833.

金丝草（学名：Pogonatherum crinitum）为禾本科金发草属下的一个种。

イタチガヤ (Pogonatherum crinitum (Thunb.) Kunth) は、単子葉植物イネ科イタチガヤ属の多年草である。岩の上などに生える小柄な植物である。日本では南方系の植物として扱われている。