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

9. Ischaemum setaceum Honda, Bot. Mag. (Tokyo). 38: 54. 1924.

小金黄鸭嘴草 xiao jin huang ya zui cao

Perennial. Culms slender, stoloniferous and rooting at base, ascending to 25 cm, lower internodes short with crowded leaves, nodes glabrous. Leaf sheaths glabrous; leaf blades linear-lanceolate, 3–6 × 0.3–0.7 cm, glabrous, apex acuminate; ligule rounded, tonguelike, ca. 1.5 mm. Racemes paired, 2–5 cm; rachis internodes thick, outer angle ciliate with long hairs, inner angles shortly ciliate or glabrous. Sessile spikelet narrowly lanceolate, ca. 4 mm, tinged reddish brown; lower glume subleathery in lower part, 2-keeled, papery and asperulous toward apex with obvious anastomosing veins, keels winged upward, apex bicuspidate; upper glume pilose on keel, apex acuminate or with 1–2 mm awnlet; awn of upper lemma 1–1.2 cm. Pedicelled spikelet resembling sessile, both glumes 1-keeled, cuspidate or mucronate.

* Seashores. S Taiwan (Lan Yu).

No specimens of this narrow endemic have been seen by the authors.


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