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

6. Anthoxanthum hookeri (Grisebach) Rendle, J. Linn. Soc., Bot. 36: 380. 1904.

藏黄花茅 zang huang hua mao

Ataxia hookeri Grisebach, Nachr. Königl. Ges. Wiss. Georg-Augusts-Univ. 3: 77. 1868; Anthoxanthum elongatum (Handel-Mazzetti) Veldkamp; A. latifolium B. S. Sun & S. Wang; A. latifolium var. purpurascens B. S. Sun & S. Wang; Hierochloë elongata Handel-Mazzetti; H. hookeri (Grisebach) Maximowicz.

Plant loosely tufted, shortly rhizomatous. Culms 20–50 cm tall, 3–4-noded. Leaf sheaths glabrous or puberulous; leaf blades linear or broadly linear, 5–25 cm, 3–8 mm wide, pubescent or abaxial surface glabrous, apex acuminate; ligule 1.5–5 mm, truncate-lacerate. Panicle rather loose or contracted, lanceolate or lanceolate-oblong in outline, 6–10 cm. Spikelets lanceolate-oblong, 5.5–8 mm, green when young, maturing purplish brown; glumes unequal, lanceolate, lower glume 3–5(–6) mm, 1(–3)-veined, upper glume equal to spikelet, 3(–5)-veined; lower florets pubescent on back, apex 2-lobed, lobes acute; first floret usually staminate with palea (rarely stamens abortive), lemma 5–6 mm, lobed in upper 1/3, awned from sinus, awn fine, straight, 1–4 mm; second floret often sterile and epaleate (but sometimes staminate with palea), lemma awned from lower 1/4, apical lobes short or back splitting to awn insertion, awn geniculate, 6–11 mm; bisexual floret 2.5–3.2 mm, smooth, shiny, (3–)5-veined; palea veinless; anthers 2.5–3.5 mm. Fl. and fr. May–Dec.

Open grassy mountainsides, dry rocky ridges, forests; 2100–4000 m. Guizhou, Sichuan, Xizang, Yunnan [Bhutan, NE India, N Myanmar, Nepal].

The sexuality of the 2 lower florets is very variable in this species. Anthoxanthum latifolium is based on a particularly broad-leaved form from Yunnan.


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