Ranunculus formosamontanus Ohwi

Herbs perennial. Roots fibrous, subequally thick. Stems 10--20 cm, appressed puberulent, simple or branched. Basal leaves ca. 2; petiole 8--15 cm, appressed puberulent; blade ternate, subpentagonal in outline, ca. 3 × 3 cm, appressed puberulent, base cordate; central leaflet short petiolulate, broadly rhombic or rhombic, to 1.5 cm wide, 3-partite; central lobe oblong or narrowly rhombic, undivided or 3-lobed, lateral lobes unequally 2-lobed or undivided; lateral leaflets short petiolulate, obliquely flabellate, unequally 2-partite. Lower stem leaves similar to basal leaves but shortly petiolate, upper ones small, sessile, 3-sect, segments linear. Flowers solitary, terminal, ca. 2 cm in diam. Receptacle glabrous. Sepals 5, ovate, 4--5 mm, abaxially brown pubescent. Petals 5, broadly ovate, 7--8 mm, nectary pit without a scale, apex rounded. Stamens numerous. Aggregate fruit subglobose, ca. 5 × 5 mm. Achene broadly obovoid, glabrous, narrowly marginate; style persistent, short, recurved. Fl. Jul.

Taiwan (Nanhu Dashan).

* Open places and sunny slopes; above 2600 m.