Buddleja curviflora f. venenifera("Urajirofujiutsugi")
Japanese name: ウラジロフジウツギ（裏白藤空木） Scientific name:Buddleja curviflora f. venenifera
[Overview]
A deciduous shrub 1–1.5 m tall, growing in sunny places such as forest edges.
The stem is round in cross section, and young branches are densely covered with pale brown soft hairs.
The leaves are simple and opposite, lanceolate to ovate, 5–15 cm long and 2–6 cm wide, with a tail-like pointed tip.
The underside of the leaf is densely covered with stellate hairs and looks white.
The leaf margin is usually entire, but sometimes has a few teeth.
The petiole is densely covered with soft hairs.
There are no stipule-like projections at the nodes at the leaf base.
Panicles at the branch tips bear many flowers, which are borne on one side.
The flowers are reddish purple, and the corolla is tubular, 1.5–1.7 cm long, with a 4-lobed tip and dense stellate hairs on the outside.
The fruit is a narrowly ovate capsule 0.5 cm long.
