Japanese hop
Humulus japonicus
Summary 7
Humulus japonicus (Japanese hop, synonym H. scandens) is an ornamental plant in the Cannabaceae family.
Ecological threat in the united states 8
Japanese hop can spread to cover large areas of open ground or low vegetation including understory shrubs and small trees. The vines grow rapidly during the summer, climbing up and over everything in their path and can form dense mats several feet deep, blocking light to plants underneath. Hop vines also twine around shrubs and trees causing them to break or fall over. Japanese hop is invasive in riparian and floodplain habitats where it displaces native vegetation, prevents the emergence of new plants, and kills newly planted trees installed for streamside habitat restoration. Hop can quickly cover small trees, hiding them from view and preventing mowing or application of non-selective herbicide.
Sources and Credits
- (c) Self, some rights reserved (CC BY-SA), https://upload.wikimedia.org/wikipedia/commons/f/f6/Humulus_Japonicus_female.jpg
- (c) C. Michael Stinson, all rights reserved, uploaded by C. Michael Stinson
- (c) Sara Rall, some rights reserved (CC BY-NC), uploaded by Sara Rall
- (c) Yoshikazu Takahira, some rights reserved (CC BY-SA), https://upload.wikimedia.org/wikipedia/commons/5/5e/Humulus_Japonicus_14OCT2007.jpg
- (c) Dalgial, some rights reserved (CC BY-SA), https://upload.wikimedia.org/wikipedia/commons/c/cb/%ED%99%98%EC%82%BC%EB%8D%A9%EA%B5%B4.JPG
- (c) Dalgial, some rights reserved (CC BY-SA), https://upload.wikimedia.org/wikipedia/commons/5/52/%ED%99%98%EC%82%BC%EB%8D%A9%EA%B5%B4_%EC%9E%8E.JPG
- Adapted by Kate Wagner from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Humulus_japonicus
- (c) Unknown, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/22948645
