Perennial, glabrous herb. Leaves grass-green, rather flaccid, narrowly elliptic, 4-12 by 0.3-0.6 cm, 1-nerved. Inflorescence a lax cyme with 2 or more flowers. Flowers fragrant. Petals 15-35 mm, claw and lower part of lamina yellowish green to white, rest of lamina pale violet, sometimes white, lower part of lamina narrow, not touching, divided more than halfway down into very narrow, hair-like lobes.
Asia-Temperate: Taiwan (Taiwan present), Asia-Tropical: Jawa (Jawa present), E China present, East Asia present, Japan present, temperate to subarctic Eurasia present
Widely distributed in temperate to subarctic Eurasia, in East Asia indigenous in E China, Japan and Taiwan. In Malesia introduced in Java, near Bogor, but probably not persistent. Not cultivated.