Photographer: Robert H. Read
Humulus japonicus Siebold & Zucc.
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.
japonicus: of Japan
Prohibited/Restricted Invasive - Eradicate!
|Status: ||Introduced - escaped; ecologically invasive|
|Plant: ||annual, weedy, herbaceous vine; stems rough|
|Flower: ||dull green, 5-parted; arranged in up to 3/4" spikes; blooms July-Oct.|
|Leaf:||rough, main leaves with 5-9 lobes, stalks usually longer than the leaf blade|