Leaves. Key characteristics: 5-lobed with serrated margins and rough-textured. Leaves and stems are covered with hairs that may cause dermatitis to sensitive individuals.
Growth habit. Japanese hops are aggressive vining plants.
Images courtesy of Dean Wilson, University Outreach and Extension Regional Specialist, Jefferson County.
Seed. Seed are lemon-shaped and covered with a pericarp mottled with gray, brown and red markings. Size is approximately 4.0 x 3.0 mm.
Life cycle: summer annual.