岩煙草

Literally, “rock tobacco”, 岩(いわ) (iwa, “rock”) + 煙草(たばこ) (tabako, “tobacco”)

岩(いわ)煙草(たばこ) or 岩煙草(イワタバコ) • (iwatabako) 

1. Conandron ramondioides

As with many terms that name organisms, this term is often spelled in katakana, especially in biological contexts (where katakana is customary).