叶苞脆蒴报春 ye bao cui shuo bao chun

Primula boothii Craib.

Herbs perennial, devoid of basal bud scales at anthesis. Leaves dimorphic. Outer leaves spatulate to obovate-spatulate, 2--6 cm, base tapering into a short winged petiole, apex rounded. Petiole of inner leaves 3--6 cm; leaf blade ovate to oblong-ovate, 3--6 X 2--5 cm, sparsely farinose, base truncate to cordate, margin irregularly dentate, apex rounded. Scapes 0.5--2 cm, elongating to 25 cm in fruit, farinose toward apex; umbel solitary, few or many flowered; bracts linear-lanceolate, 3--10 mm, glandular ciliate, occasionally axils of bracts producing stalked leaves, 0.6--2.5 cm wide. Pedicel 1.5--4.5 cm, ± farinose. Flowers heterostylous. Calyx campanulate, 7--10 mm, farinose, parted to middle; lobes ovate to ovate-oblong, apex acuminate. Corolla pinkish lilac; tube 1.2--1.3 cm, glandular pubescent; limb 2.5--3 cm wide; lobes broadly obovate, apex dentate. Pin flowers: stamens near middle of corolla tube; style ca. as long as tube. Thrum flowers: stamens on upper 1/3 of corolla tube; style 7--10 mm. Capsule disintegrating at maturity. Fl. Mar-Apr.

In rock crevices of ravines; 2300--2700 m. S Xizang [Bhutan, NE India, Nepal, Sikkim].