Corallorhiza trifida Châtelain, Spec. Inaug. Corallorhiza 8. 1760. 

 珊瑚兰 shan hu lan 

 Ophrys corallorhiza Linnaeus, Sp. Pl. 2: 945. 1753; Corallorhiza innata R. Brown. 

 Plants slender, 10–28 cm tall. Rhizome beige to brown, extensively branching. Inflorescence reddish brown, with 3–5 sheaths; sheaths amplexicaul, reddish brown, tubular, 1–6 cm, membranous; rachis 1–3(–5) cm, laxly to densely 3–7-flowered; floral bracts ca. 1 mm. Flowers ascending, pale yellowish green to white; pedicel and ovary 3.5–5 mm. Dorsal sepal arching forward and forming a loose hood with petals, narrowly oblong-lanceolate to narrowly elliptic, 4–6 × 1–1.5 mm, 1- veined, apex obtuse or acute; lateral sepals similar to dorsal sepal, slightly oblique, 4–6 × 1–1.5 mm, connate at base and forming an inconspicuous mentum with base of column, 1- veined, apex obtuse or acute. Petals broadly lanceolate to oblanceolate, 3–5 × ca. 1.5 mm, 1-veined, apex obtuse or acute; lip broadly oblong, 2.5–3.5 × ca. 1.5 mm, obscurely 3-lobed toward base; lateral lobes erect, small; mid-lobe elliptic to oblong, 1–1.5 × ca. 0.8 mm, apex rounded and sometimes emarginate; disk with 2 thick longitudinal lamellae extending to base of mid-lobe. Column 2.5–3 mm, with small wings; stigma transversely oblong, broad. Capsule ellipsoid, 7–9 × ca. 5 mm. Fl. and fr. Jun–Aug. 2n = 38, 40, 42. Forests, thickets; 2000–2700 m. Gansu, N Guizhou, Hebei, Jilin, Nei Mongol, Qinghai, Sichuan, Xinjiang [India, Japan, Kashmir, Korea, Nepal, Russia; Europe, North America]. 

 The extensive extra-Chinese synonymy is not cited here.