討論:Urena
山羊百科，林文智老師的植物、山岳、攝影紀錄
- Urena efloraofindia https://sites.google.com/site/efloraofindia/species/m---z/m/malvaceae/urena
- Urena in Flora of North America @ efloras.org http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=134202
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- Cooke, Fl. Pre. Bombay 1: 100 1903；https://www.biodiversitylibrary.org/page/11393962#page/116/mode/1up
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