风兰 feng lan

Orchis falcata Thunberg in Murray, Syst. Veg., ed. 14, 811. 1784; Angorchis falcata (Thunberg) Kuntze; Angraecopsis falcata (Thunberg) Schlechter; Angraecum falcatum (Thunberg) Lindley; Finetia falcata (Thunberg) Schlechter; Holcoglossum falcatum (Thunberg) Garay & H. R. Sweet; Limodorum falcatum (Thunberg) Thunberg; Nipponorchis falcata (Thunberg) Masamune; Oeceoclades falcata (Thunberg) Lindley; Vanda falcata (Thunberg) Beer.

Plants usually 8-12 cm tall. Stems 1-6 cm, many leaved. Leaves narrowly oblong-falcate, 5-12 × 0.7-1 cm, thickly leathery, conduplicate and sheathing toward base, apex acute. Inflorescence including flowers 5-8 cm, suberect, 2- or 3(-5)-flowered; peduncle 1-3 cm; floral bracts ovate-lanceolate, 7-9 mm, acuminate. Flowers fragrant, white, anther cap brown on both sides; pedicel and ovary 2.8-5 cm. Sepals subobovate, 8-10 × 2.5-4 mm, obtuse; lateral sepals falcate-curved, dorsally carinate apically, recurved. Petals oblanceolate or subspatulate, 8-10 × 2.2-3 mm, obtuse; lip fleshy, 3-lobed; lateral lobes oblong, 3.5-4 × 0.8-1 mm, obtuse; mid-lobe ligulate, 7-8 × 2-2.5 mm, retuse, with a triangular basal callus, adaxially with 3 slightly swollen ridges; spur arcuate, 3.5-5 cm × 1.5-2 mm, slender, obtuse. Column ca. 2 mm, with wings triangularly enlarged in upper part; anther cap apex narrowed and triangular. Fl. Apr. 2n = 38.

Epiphytic on tree trunks in forests; 1500-1600 m. N Fujian, S Gansu, SW Hubei, W Jiangxi, Sichuan, Zhejiang [Japan, Korea].