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Photographer: Robert H. Read
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Family Cannabaceae
Humulus japonicus Siebold & Zucc.
Japanese hop
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!
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| 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 |
| (Glossary) |
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