Humulus japonicus

Humulus japonicus: Japanese hop

Plant Identification:

• Growth form: herbaceous annual, twining, shallow rooted-vine climbing to heights of 10 feet or more
• Leaf: rough textured, paired, simple, palmate with 5-7 lobes and toothed leaf margins
• Flowers: occur in July/August. Male flowers are small, greensih-yellow and occur in branched panicles. Femaile flowers are pale green, plump, drooping, cone-like structures with overlapping scales that become hops
• Seeds: covered in yellow glands, and are 1/8 inch in diameter, roundish with a blunt tip, and are light brown with darker specks

For more information about Japanese hop identification, please visit:

• GoBotany
• USDA Weed of the Week
• PCA Alien Plant Info
• EDDMaps
• National Park Service
• United States Forest Service

For more information about Japanese hop best management practices, please visit:

• National Park Service
• United States Forest Service