phytotherapy

US /ˌfaɪ.t̬oʊˈθer.ə.pi/
UK /ˌfaɪ.t̬oʊˈθer.ə.pi/
1.

植物疗法

the treatment of medical conditions using plants, or substances made from plants:

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In a phytotherapy shop I found a small bottle labeled "Chamomilla nobile."