Mitella japonica Miquel var. formosana Hayata, Icon. Pl. Formos. 3: 101. 1913.

Herbs perennial, 14.5-24 cm tall. Rhizomes elongate, slender. Leaves all basal; petiole 7-13 cm, densely brown crisped glandular villous; leaf blade ovate-cordate, 3.5-7 × 3.3-5 cm, both surfaces glandular strigose, base cordate, margin irregularly dentate, obscurely 5-7-lobed, apex acute. Raceme slender, 3-10 cm, glandular villous, many flowered; pedicels 2-4 mm, glandular hairy. Sepals broadly ovate, ca. 1.2 × 1.3 mm, abaxially glandular hairy, 1-veined, apex acute. Petals ca. 3.6 mm, margin deeply pinnately 5-7-cleft; segments linear, glandular dotted. Stamens 5, ca. 0.9 mm. Carpels 2, connate; ovary ca. 1/2 subinferior, broadly ovoid; styles ca. 0.5 mm; stigmas 2-lobed. Fruit a capsule. Seeds numerous, ellipsoid-fusiform, ca. 1 mm. Fl. Apr-Aug. 2n = 14*.

* Forests along ravines; 2900-3000 m. Taiwan.