Japanese name: ケイビラン（鶏尾蘭） Scientific name:Comospermum yedoense
[Overview]
A perennial growing on cliffs and rocks in the mountains.
It has a short rhizome.
The leaves are basal, linear, 10–40 cm long and 0.7–2.5 cm wide, and curve like a bow.
The leaf margins are entire.
The leaf bases are wrapped in the fibers of old leaves.
It is said to be dioecious.
The flower stalk is flat, 10–40 cm long, with narrow wings on the edges.
An inflorescence 2.5–24 cm long arises at the tip of the flower stalk and bears flowers sparsely.
The flowers are bell-shaped, 6-petaled and face downward; male flowers are white to pale purple, with the stamens and pistil protruding out of the flower, while female flowers are reddish purple, with the stamens and pistil not protruding.
The fruit is a spherical capsule 0.3–0.4 cm in diameter.
[Cultivation]
Propagate from seed or by division.
It prefers a sunny, well-drained place, but strong direct sun in summer can cause leaf scorch.
For potted plants, water thoroughly when the soil surface dries; for plants in the ground, rainfall is sufficient.
In spring, apply slow-release fertilizer placed on the soil.
There are no particular pests or diseases.
