垂果齿缘草 chui guo chi yuan cao

Herbs perennial, 20-50 cm tall. Stems arcuate ascending, 2-3 mm in diam., densely pubescent. Petiole of basal leaves 2-3 cm; stem leaves short petiolate or ± sessile, ovate-lanceolate to elliptic, 2-3 cm × 6-12 mm, pubescent, base cuneate to broadly cuneate, apex acuminate to acute. Inflorescences widely spaced, conjugately terminating stem, to 25 cm in fruit. Pedicel 5-10 mm at anthesis, to 2-4 cm in fruit, pubescent; bracts linear. Calyx lobes erect, linear to lanceolate, ca. 1.5 mm at anthesis, enlarged in fruit, divaricate or reflexed, pubescent. Corolla white, campanulate-rotate; appendages low trapeziform, slightly exserted; limb 5-6 mm wide; tube ca. 1.5 mm; lobes obovate, ca. 2.5 mm. Anthers oblong, ca. 1 mm. Gynobase ca. 0.5 mm. Style ca. 1 mm. Nutlets dorsiventrally compressed; adaxially sparsely pubescent, keeled above attachment scar; disc ovate to ovate-triangular, slightly convex, sparsely pubescent, marginal rib with a few fine emergences; attachment scar below middle adaxially, prominent, becoming carpophore to 0.8 mm. Fl. Aug.

* Foothills; ca. 2300 m. Xinjiang (Heshuo Xian).