| 词条 | Asarum asperum | |
| 释义 |
|image=Asarum asperum.jpg |genus=Asarum |species=asperum |authority=F.Maek. |synonyms=Heterotropa aspera (F.Maek.) F.Maek. }}Asarum asperum is a species of flowering plant in the pipevine family, Aristolochiaceae. It is endemic to Japan, where it is found on Shikoku and in the western regions of Honshu.[1] It is particularly common in the vicinity of Kyoto and Nara.[2] It is a perennial that produces thick evergreen leaves, which are ovate-orbicular and have a subhastate base.[1] It produces ground-level maroon flowers, that are pollinated by insects. The flowering tube is prominently constricted at its apex. It blooms in April.[1] It forms colonies on the forest floor, where it often grows co-occurs with Ainsliaea cordifolia, with which it bears a resemblance.[2] References1. ^1 2 {{cite book |last=Ohwi |first=Jisaburo |date=1965 |title=Flora of Japan |url= |location= |publisher=Smithsonian Institution |page=399|isbn= |author-link= }} {{Taxonbar|from=Q15545355}}2. ^1 {{cite thesis |last=Yinger |first=B.R. |date=1983 |title=A horticultural monograph of the genus Asarum, sensu lato, in Japan |type=Master's Thesis |chapter= |publisher=University of Delaware |docket= |oclc= |url=http://www.udspace.udel.edu/bitstream/19716/3100/1/yinger_1983-06.pdf |access-date=2018-12-10}} 3 : Asarum|Endemic flora of Japan|Plants described in 1932 |
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