Japanese name: マメアサガオ（豆朝顔） Scientific name:Ipomoea lacunosa
[Overview]
A twining annual.
The whole plant is almost hairless.
The vine branches freely, grows to several meters, and twines around other objects.
Leaves are alternate, ovate-round, sometimes 3-lobed, and abruptly pointed at the tip.
The leaf margin is entire.
Flowers are borne 1–3 per inflorescence arising from the leaf axils, and the inflorescence is shorter than the leaves.
The flowers are funnel-shaped, about 2 cm across, shallowly 5-lobed with pointed lobe tips, and star-shaped when seen from the front.
The flower color is pale purple to white.
The flower stalk is densely covered with wart-like projections.
The fruit is flattened-spherical with long hairs on the upper part.
[History]
After being reported near Tokyo in 1955, it has become naturalized from the Kanto region westward.
