西南黄杨叶栒子 xi nan huang yang ye xun zi

Basionym: Cotoneaster rockii G. Klotz, Wiss. Z. Martin Luther Univ. Halle-Wittenberg, Math.-Naturwiss. Reihe 12: 775. 1963; C. insolitus G. Klotz.

Shrubs evergreen, dwarf, 0.5–1 m tall. Leaves elliptic or broadly lanceolate, rarely oblong-oblanceolate, 6.5–12 mm, abaxially sparsely villous-tomentose or more so, apex usually obtuse, rarely ± acute and mucronulate. Flowers 1 or 2, rarely 3 or 4. Pedicels, hypanthium, and sepals abaxially sparsely villous-tomentose, gradually glabrescent.

Rocks and boulders in high mountain regions; 3000--3900 m. SW Sichuan, SE Xizang, Yunnan.