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

3. Pseudopogonatherum koretrostachys (Trinius) Henrard, Blumea. 4: 521. 1941.

刺叶假金发草 ci ye jia jin fa cao

Andropogon koretrostachys Trinius, Mém. Acad. Imp. Sci. St.-Pétersbourg, Sér. 6, Sci. Math. 2: 273. 1833; A. asthenostachys Steudel; Eulalia setifolia (Nees) Pilger; Pollinia setifolia Nees; Pseudopogonatherum setifolium (Nees) A. Camus.

Culms erect or geniculately ascending, 30–60 cm tall. Leaf sheaths glabrous; leaf blades usually involute, 5–20 × 0.1–0.2 cm, glabrous or adaxial surface pilose; ligule ca. 0.5 mm. Racemes (1–)7–25 or more, subdigitate, 2–8 cm, white hairy, tardily fragile, one spikelet of a pair sessile, the other pedicelled; rachis internodes and pedicels 1/2 spikelet length, villous. Spikelets 2–3 mm, brown; callus hairs 1/5–1/4 spikelet length; lower glume narrowly lanceolate-oblong, villous except near apex, sometimes sparsely so or glabrous, upper flanks villous, apex 2-toothed or truncate and minutely 2-mucronate; upper glume with 3–6 mm awn; lower lemma ca. 1 mm; upper lemma shortly 2-toothed; awn 1.5–2 cm, column shortly ciliate, hairs ca. 0.25 mm. Anthers 3, 0.5–0.7 mm. Pedicelled spikelet easily deciduous, maturing before sessile spikelet. Fl. and fr. Sep–Nov.

Hill slopes, roadsides. Anhui (Tai Hu), Fujian, Guangdong, Guangxi, Hainan, Jiangxi, SE Yunnan, Zhejiang [Indonesia, Laos, Malaysia, Philippines, Thailand].

This is a variant from the Pseudopogonatherum contortum complex with one spikelet of the pair sessile. It also has short hairs on the column of the awn.


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