Cassiope argyrotricha T. Z. Hsu

Shrubs 12–15 cm tall, much branched. Stems erect or decumbent. Leaves densely imbricate; leaf blade oblong, 4–5 × ca. 1.5 mm, leathery, abaxially convex, sparsely silvery pubescent, deeply furrowed, furrow nearly reaching apex and divergent towards base, adaxially concave, glabrous, base arching, margin rust-colored-brown, membranous, brown flattened-setulose, apex obtuse. Flower erect. Pedicel 5–25 cm, densely arachnoid-tomentose. Calyx glabrous; lobes elliptic, ca. 4.5 mm. Corolla white, campanulate, ca. 9 mm; lobes spreading, broadly triangular. Stamens ca. 3 mm; filaments pilose; awns ca. 1 mm. Ovary ca. 1 mm in diam. Capsule unknown. Fl. Sep.

NW Yunnan (Fugong).

Rocks in forests, Rhododendron thickets; 3000–4400 m.