Dioscorea septemloba var. septemloba("Kikubadokoro")
Japanese name: キクバドコロ（菊葉野老） Scientific name:Dioscorea septemloba var. septemloba
[Overview]
A climbing perennial found in hills and fields.
The underground stem creeps horizontally just below the surface of the ground.
Leaves are alternate, palmately divided into 5–9 lobes, with pointed lobe tips.
The petiole is long and has no small projections at the base.
The leaves turn blackish brown when dried.
It is dioecious.
Male inflorescences emerge sideways and sometimes branch.
Female inflorescences hang down.
Both male and female flowers are yellowish green, sometimes purple, and stalkless, with 6 tepals that open flat.
All 6 stamens of the male flower are complete and fertile.
The fruit is an obovate capsule 2–2.2 cm long and 1.9–2.7 cm wide, with 3 wings.
The seeds are elliptic, about 5 mm long, with a wing around them.
