| Family | Aristolochiaceae |
| Scientific name | Aristolochia liukiuensis Hatusima |
| Synonyms | none |
| Common name | (Japanese common name) ryukyu uma-no-suzu-kusa (リュウキュウウマノスズクサ, 琉球馬鈴草 [meaning: Ryukyu Islands horse bells weed]) |
| (English common name) none | |
| Distribution | (Japan) Southeastern Islands, Okinawa |
| (Other nations) none | |
| Habitat | Forest edge |
| Chromosomal number | 2n=32 |
| Description | Plants 2-3m long. Leaves 8-14cm wide. Flowers ca. 2cm long, flowering in May to June. Wooden vine. Perennial plants. |
| Reference | Aristolochia liukiuensis Hatus. |
| Aristolochia sensu lato (Aristolochiaceae) | |
| Chloroplast DNA variation and geographical structure of the Aristolochia kaempferi group (Aristolochiaceae) | |
| An aristolochic acid derivative of Aristolochia liukiuensis | |
| Aristolochia alert for practitioners | |
| Process for extracting aristolochic acids (US Patent 4162255/1979) | |
| Sustained release hair growth composition (US Patent 6255313/2001) | |
| Note | Endemic to Japan. |
| Similar species which occurs in Taiwan is Aristolochia shimadai Hayata, non Aristolochia liukiuensis Hatusima. |
| January 2008 at Koishikawa Botanical Garden |
January 2008 at Koishikawa Botanical Garden |
January 2008 at Koishikawa Botanical Garden |
| January 2008 at Koishikawa Botanical Garden |