Where does “岩煙草” come from?

岩煙草 (Japanese) comes from Japanese 岩, from Old Japanese いわ.

岩煙草 (Japanese): Conandron ramondioides

Definitions

  1. Conandron ramondioides

Ancestry of “岩煙草”, step by step

岩煙草 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japaneserock
2Old Japaneseいわ

via Japanese 煙草

StepLanguageWordMeaning
1Japanese煙草Rare spelling of タバコ; Synonym of タバコ
2Chinese煙草tobacco; tobacco leaf; tobacco product
Every word from Old Japanese いわEvery word from Japanese