近优越虎耳草 jin you yue hu er cao

Saxifraga corymbosa J. D. Hooker & Thomson, J. Proc. Linn. Soc., Bot. 2: 70. 1858, not Lucé (1823), nor Boissier (1843); S. hookeri var. aequifolia C. Marquand & Airy Shaw; S. hookeri var. glabrisepala Engler & Irmscher; S. hookeri var. smithii Engler & Irmscher.

Herbs perennial, 9.5-23.5 cm tall. Stem brown crisped glandular villous. Basal leaves with petiole 3.5-4.3 cm, abaxially and marginally brown crisped glandular villous; leaf blade ovate, 1.9-2.1 × ca. 1.3 cm, abaxially and marginally brown villous, base cordate, apex acute. Cauline leaves 3-5; petiole 0.2-3.1 cm; leaf blade ovate, 1-2.2 cm × 5-13 mm; proximal ones brown villous abaxially and marginally; most distal one glandular villous adaxially and marginally. Cyme strongly corymbiform, 2.4-3.8 cm, 3-6-flowered or flower solitary; pedicels glandular hairy. Sepals erect to spreading, ovate, 3.3-3.8 × 2-2.3 mm, abaxially and marginally dark brown glandular hairy, veins 3-5, confluent at apex, apex acute. Petals yellow, oblong to broadly elliptic, 5-8.1 × 2-5.7 mm, (3 or)4-callose, 3-5-veined, base contracted into a claw 0.6-1 mm, apex obtuse. Stamens 2.5-5.5 mm. Ovary subsuperior, ovoid to ellipsoid, ca. 2-3.4 mm; styles 1.1-1.8 mm. Fl. and fr. Aug-Oct. 2n = 16.

Forests, slopes, by water; 3300-4200 m. E Xizang [Bhutan, Nepal, Sikkim].