[Overview]
A bulbous perennial about 30 cm tall.
The corm is wrapped in a soft, fibrous outer coat.
Several leaves grow from the base; they are lanceolate to sword-shaped, and the raised veins make lengthwise wrinkles conspicuous on the surface.
A spike bears 6-petaled flowers.
There are 3 stamens, and the pistil is 3-lobed at the tip.
The fruit is a nearly spherical capsule.
[Cultivation]
Propagate by dividing corms and by cormels.
It prefers a sunny, well-drained, fertile soil.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, rainfall is sufficient.
Apply a basal fertilizer, and from sprouting until the flowering period give diluted liquid fertilizer twice a month.
There are no particular pests or diseases.