Humulus japonicus Siebold & Zucc.
Family: Cannabaceae
Japanese hop
[Humulus scandens auct. non (Lour.) Merr.]
Humulus japonicus image
Robert H. Read  
Etymology: Humulus: Latin name of uncertain origin, may have descended from Low German word humela, hop; which is the common name of this genus placed by Munz in the Moraceae or mulberry family, but moved by Jepson along with Cannabis into the new family Cannabaceae.
Plants: annual, weedy, herbaceous vine; stems rough
Leaves: rough, main leaves with 5-9 lobes, stalks usually longer than the leaf blade
Flowers: dull green, 5-parted; arranged in up to 3/4" spikes; blooms July-Oct.
Invasiveness: Prohibited/Restricted Invasive - Eradicate!
Conservation Status: Introduced - escaped; ecologically invasive
Humulus japonicus image
Humulus japonicus image
Humulus japonicus image
Robert H. Read  
Humulus japonicus image
Humulus japonicus image
Humulus japonicus image
Humulus japonicus image
Humulus japonicus image
Humulus japonicus image
Humulus japonicus image
Humulus japonicus image