Crossword clue: eurasian perennial herb with white flowers that emit flammable vapor in hot weather

The most common answer is dittany (7 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

dittany 7 letters wn-def

Eurasian perennial herb with white flowers that emit flammable vapor in hot weather

fraxinella 10 letters wn-def

Eurasian perennial herb with white flowers that emit flammable vapor in hot weather