Astilbe macroflora Hayata

Herbs 15-30 cm tall. Stems long pilose. Leaves ternately or 2-pinnate-ternately compound; common petiole and petiolules long pilose and glandular hairy; leaflets broadly ovate, 2.4-3.8 × 2.3-3.2 cm, abaxially glandular hairy and long pilose along veins, adaxially glandular strigose, base cordate or obliquely so, margin doubly serrate, glandular hairy, apex acute. Panicle 4-8 cm; branches brown long pilose; pedicels brown long pilose and glandular hairy. Sepals 5, ovate to narrowly so, 2-2.5 × ca. 1 mm, both surfaces glabrous, margin sparsely dentate distally, apex acute. Petals 5, usually spatulate, 3-3.4 × ca. 1 mm, 4-6-veined, apex acute. Stamens 10, 2.5-4 mm. Pistil ca. 5 mm; carpels 2, mostly free; ovary semi-inferior; styles divergent. Capsule ca. 5 mm. Seeds small. Fl. Jul-Aug.

C Taiwan.

* High peaks; 3200-3800 m.