旱杜根藤 han du gen teng

Calophanoides siccanea (W. W. Smith) C. Y. Wu ex C. C. Hu.

Shrubs to 60 cm tall, prostrate. Stems woody, flexuous, grayish tomentose, soon glabrescent. Petiole 3-8 cm, villous; leaf blade ovate to lanceolate, 1.5-4 × 1-2 cm, both surfaces sparsely pilose, secondary veins ca. 4 on each side of midvein, base cuneate, margin entire, apex rounded to acute. Spikes axillary, ca. 1 cm, 1-3-flowered; peduncle ca. 3 mm, grayish pubescent; bracts linear, 2-3 mm, abaxially grayish pubescent; bracteoles similar to bracts. Calyx ca. 7 mm, outside pubescent, 5-lobed to base; lobes linear. Corolla white tinged with red, ca. 1.3 cm, outside pubescent; lower lip very short, 3-lobed, lobes circular; upper lip shorter, apex emarginate. Staminal filaments ca. 4 mm, basal portion whitish villous; anther thecae superposed, lower one spurred at base. Ovary glabrous; style ca. 8 mm, white villous. Capsule ca. 7 mm, glabrous. Seeds ovate in outline, ca. 1 × 1 mm. Fl. Sep.

● On rocks by trailsides, open slopes; 2000-2200 m. Sichuan, Yunnan.