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

3. Gelidocalamus longiinternodus T. H. Wen & Shi C. Chen, J. Bamboo Res. 5(2): 24. 1986.

箭把竹 jian ba zhu

Culms to 5 m, to 3 cm in diam.; internodes green, 50–70 cm, densely dark brown setose below nodes; wall 2–4 mm thick; nodes prominent. Culm sheaths initially green-purple, much shorter than internodes, densely dark brown setose, nearly glabrous at base, margins uniformly brown ciliate; auricles erect, triangular to elliptic, roughly brown hairy; oral setae dense, 5–7 mm (to 1.3 cm on apical sheath); ligule 2–3 mm, roughly hairy, cilia pale yellow and ca. 1.5 cm; blade erect, narrowly lanceolate, glabrous. Leaves 1(–3) per ultimate branch; sheath initially brown setose; auricles extended, falcate, fragile, margins brown ciliate; oral setae erect or spreading, ca. 1.2 cm; ligule strongly arcuate, ca. 2 mm, apex ciliate; blade broadly lanceolate or elliptic, 28–40 × 4.5–5.5 cm, abaxially pubescent near midrib, secondary veins 9–11-paired. Inflorescence unknown. New shoots autumn–winter.

* Lowlands. Hunan.


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