鸟足兰(原变种) niao zu lan (yuan bian zhong)

Satyrium albiflorum A. Richard; S. henryi Schlechter; S. pallidum A. Richard; S. perrottetianum A. Richard.

Plants usually robust, 25-60 cm tall. Stem 2- or 3-leaved. Leaves basal or rarely cauline, broadly ovate to ovate-lanceolate, 7-19 × 2-5.5(-8) cm, apex acute. Peduncle 10-30 cm, stout; rachis 7-20 cm; floral bracts to 35 mm. Flowers hermaphroditic. Dorsal sepal 4-5 × 1-1.8 mm; lateral sepals oblong to subovate, slightly oblique, ca. 4 × 2 mm. Petals narrowly oblong to narrowly elliptic, ca. 3.5 × 1 mm, glabrous; spurs downcurved, cylindric, 8-13 mm, ca. as long as or exceeding ovary, slender. Fl. Sep-Dec. 2n = 82, 123, 164.

Forests, open forests, grassy slopes; 1000-3200 m. SW Guizhou, S Xizang, S and SE Yunnan [Bhutan, India, Myanmar, Nepal, Sri Lanka].