Urtica thunbergiana is a species of the genus Urtica. It is found in Japan, China and Taiwan. The habitat if the species is moist forests in the mountains. It is in flower from July to September, and its seeds ripen from August to October. The larvae of Vanessa indica, a species of butterfly, are known to feed on U. thunbergiana. U. thunbergiana has a Chinese name commonly used in Taiwan--yǎorénmao (Traditional Chinese: 咬人貓; literally: "biting cat")--and another name commonly used in mainland China--yǎorénxúnmá (Simplified Chinese: 咬人荨麻; literally: "biting nettle").