Tofieldia iridacea Franchet; T. macilenta Franchet; T. setchuenensis Franchet.

Leaves 5--20 cm × 3--7 mm, rather rigid, margin scabrous, apex acuminate, veins inconspicuous. Scapes 10--30(--38) cm, with 1 or 2 linear leaves in proximal part. Racemes ca. 15 cm, many flowered. Flowers ascending or nearly so; pedicel (3--)5--12 mm at anthesis; bracteole 1, cupular, apically 3-lobed. Perianth segments white, narrowly oblanceolate-oblong, 2--3 × 0.4--0.5 mm. Stamens protruding from perianth. Ovary oblong-ovoid, ca. 2.5 mm, 3-lobed apically. Styles slender, ca. 1 mm, obviously longer than anthers. Capsule suberect, obovoid-ellipsoid, 2.5--3 × ca. 2 mm, apically 3-lobed, with persistent styles (0.3--)1--1.5 mm and stigmas scarcely thickened. Seeds linear-fusiform, ca. 1 × 0.5 mm, with a white, longitudinal band on 1 side. Fl. Jun--Jul, fr. Jul--Sep.

* Cliffs, crevices on rocks along valleys, thickets, moist grassy slopes; 700--2300 m. Guizhou, EC Sichuan, NE Yunnan.