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FOC | Family List | FOC Vol. 23 | Cyperaceae | Kobresia

15. Kobresia hohxilensis R. F. Huang, Biol. & Human Physiol. Hoh Xil Region. 101. 1996.

匍茎嵩草 pu jing song cao

Blysmocarex macrantha (Boeckeler) K. V. Ivanova subsp. stolonifera (Y. C. Tang ex P. C. Li) D. S. Deng; Kobresia stolonifera Y. C. Tang ex P. C. Li.

Rhizomes elongate, slender, stoloniferous. Basal sheaths yellowish brown or brown, 2-5 cm, retaining dried leaf blades or not. Culms scattered, erect or curved, subterete, slender, 3-20 cm tall, 0.6-1 mm in diam. Leaves basal, shorter than culms; blade filiform, margin involute, 0.4-0.8 mm wide. Inflorescence narrowly paniculate, sometimes spicate, reddish brown, cylindric to narrowly ovoid, 1.5-2 × ca. 0.8 cm; lower inflorescence branches androgynous, or with mixed female and male spikelets, upper part of inflorescence spicate consisting of bisexual and terminal male spikelets; lowest involucral bract glumelike, apex long aristate. Spikelets unisexual and bisexual; glumes reddish brown, with yellowish brown midvein, narrowly ovate, 5.6-6.5 × 2-3 mm, margin hyaline, apex rounded or acute. Prophylls yellow to yellowish brown, narrowly ovate, 4.3-6.5 × 1.6-2.7 mm, papery to leathery, margins free or connate at base and overlapping. Nutlets broadly oblong, flattened, 2-3 × 1.5-1.8 mm, not beaked, stipe 0.6-1 mm. Sterile rachilla of female spikelets terete, minute. Stigmas 2, very long, slender. Fl. and fr. Jun-Sep.

● Sandy or rocky and sandy ground, open grassy plains; 3100-4900 m. Gansu, Qinghai, Xizang.


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