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FOC | Family List | FOC Vol. 19 | Rubiaceae | Ophiorrhiza

64. Ophiorrhiza sichuanensis H. S. Lo, Guihaia. 11: 104. 1991.

四川蛇根草 si chuan she gen cao

Herbs, procumbent in lower portion, ascending above; stems drying black, subglabrous or puberulent. Leaves in subequal pairs; petiole 0.8-2 cm, subglabrous; blade drying thickly papery, adaxially leaden gray, abaxially dark brown, broadly elliptic, 1.5-5 × 1.2-3.2 cm, glabrous on both surfaces, base rounded to obtuse, margin irregularly dentate or rarely entire, apex obtuse or acute; secondary veins 4-6 pairs; stipules generally persistent, subulate, 1.5-2 mm, acuminate. Inflorescences 1- or 2-flowered; bracts linear, 4-6 mm. Flowers with biology unknown, on pedicels 6-8 mm. Calyx with hypanthium broadly turbinate, ca. 2.5 mm, 5-ribbed; lobes linear, 3.5-4 mm, slightly obtuse. Corolla purple, funnelform, outside glabrous; tube 26-29 mm, white villous inside; lobes ovate-triangular, ca. 6 mm, apex rostrate. Capsules not seen. Fl. Apr.

● On rocks; ca. 1200 m. Sichuan (Leibo).


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