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FOC | Family List | FOC Vol. 16 | Boraginaceae | Onosma

23. Onosma album W. W. Smith & Jeffrey, Notes Roy. Bot. Gard. Edinburgh. 9: 112. 1916.

白花滇紫草 bai hua dian zi cao

Herbs perennial, gray-white, 40-60 cm tall, densely hispid, short strigose, extremely scabrous. Stems single, erect, not branched. Basal leaves linear-lanceolate, 3-8 cm × ca. 5 mm, densely hispid, abaxially densely white pubescent and sparsely hispid, adaxially strigose, base attenuate, apex acute; stem leaves lanceolate or linear-lanceolate, 4-6 cm × 4-7 mm, abaxially pubescent, adaxially densely hispid and strigose, base rounded, apex acuminate. Inflorescences terminal and axillary, in widely spaced panicles; bracts ovate-lanceolate, 5-10 mm. Pedicel slender, 5-8 mm, densely hispid, slightly elongated after anthesis. Calyx 7-9 mm, densely hispid outside, densely pilose inside, parted nearly to base; lobes linear-lanceolate. Corolla white, tubular-campanulate, 8-10 mm; throat 3.5-5 mm wide, upper 1/3 pubescent outside, only lobe midvein pubescent inside; nectary ca. 0.5 mm, white villous; lobes erect, triangular, ca. 1.5 mm, margin revolute. Filaments 6-7.5 mm, decurrent part pubescent, inserted ca. 3 mm above base of corolla tube; anthers laterally united, ca. 9 mm, mostly exserted, sterile apex ca. 2 mm. Style 1.6-1.7 cm, sparsely pubescent below middle. Fl. Jul.

* Hillsides, open forests, gravelly and sandy areas; ca. 3000 m. NW Yunnan.


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