高山头蕊兰 gao shan tou rui lan

Cephalanthera taiwaniana S. S. Ying.

Plants leafy, autotrophic, 15-45 cm tall. Stem slender, with several basal sheaths, 5-8-leaved. Leaves elliptic-lanceolate to sublanceolate, 4-10 × 0.6-2.5 cm, base slightly contracted, apex acuminate. Inflorescence laxly 3-14-flowered; rachis 6-14 cm; basal floral bract linear-lanceolate and slightly exceeding ovary, distal ones subtriangular, 3-5 mm. Flowers suberect, weakly spreading or remaining closed, white; pedicel and ovary 10-17 mm. Sepals narrowly elliptic to suboblong, 10-15 × 3-5 mm, apex acute. Petals elliptic to sublanceolate, 8-12 × 3-4.5 mm, apex acute; lip 7-12 mm, 2-partite; hypochile shallowly saccate, enclosed within bases of lateral sepals; hypochile lobes erect to spreading, obliquely triangular-ovate, apex obtuse; epichile broadly ovate to ovate-suborbicular, 3-6 × 5-6 mm, with 3-5 irregularly papillate, brownish lamellae. Column erect, 5-7 mm, with 2 small wings; anther ovoid, 2-3 mm. Capsule cylindric, 2-3 cm. Fl. May-Aug.

● Dry open Pinus forests, alpine meadows; 2000-3000 m. C and N Taiwan.