[Overview]
A natural hybrid between Hime-sumire and Sumire, with a form intermediate between the two.
It is found relatively often in areas where both grow mixed together.
It has no aerial stem.
The leaves are basal with long petioles, triangular-lanceolate, with the base extending out to both sides.
The petioles have slight wings.
The leaf margins have low serrations.
The undersides of the leaves may be tinged with purple.
The flowers are borne at the tips of upright flower stalks arising from the leaf axils; they are about 2 cm across, deep purple, and the center of the lip petal is white with purple lines.
The lateral petals have hairs at the base, and a spur extends behind the flower.
The summer flowers are cleistogamous.
The fruit is a capsule that splits into 3 when ripe and scatters the seeds.
[Cultivation]
Propagate from seed, by cuttings, or by division.
It prefers partial shade and well-drained soil rich in humus.
It is easy to grow, but powdery mildew may appear.
Pests include aphids, spider mites, cutworms and Tsumaguro-hyomon.
[Notes]
The Japanese name comes from the fact that it was discovered at Heirin-ji in Saitama.
