Common hop
Humulus lupulus L. [Cannabaceae]
Karahanasou (カラハナソウ, 唐花草)
Life form: dioecious, perennial climber
Distribution: temperate Northern Hemisphere, including northern Japan
Habitat: grassland - forest
Humulus L. in Japan
H. japonicus Sieb. et Zucc. (カナムグラ)
H. lupulus L.
var. cordifolius (Miq.) Maxim. ex Franch. et Sav.: Eastern Asia (カラハナソウ)
var. lupuloides E. Small (syn. H. americanus Nutt.): Eastern North America
var. lupulus: Europe - western Asia, exotic to Japan (セイヨウカラハナソウ/ホップ)
var. neomexicanus A. Nelson et Cockerell: Western North America
var. pubescens E. Small: Midwest North America
Humulus lupulus var. cordifolius in Hokkaido
[Left] a cast. [Center] this species produces dimorphic leaves. [Right] too late to see flowers. At Toya Lake Experimental Station, Hokkaido University, on August 24 2010 at Fairbanks, Alaska. It was rain.
References
- Parthenocissus tricuspidata: Clearly see the dimorphic leaves
- Field training on integrated environmental research 統合環境調査法実習
fauna and flora (出現種リスト)