Did you know that there’s a bush which emits a flammable, oily substance which can be lit on fire, without burning the bush itself.
Dictamnus is a genus of flowering plant in the family Rutaceae, with a single species, Dictamnus albus, which has several geographical variants. It is known variously as burning bush, false dittany, white dittany, gas plant and Fraxinella. It is an herbaceous perennial, native to warm, open woodland habitats in southern Europe, north Africa and much of Asia.
In the summer months, the whole plant is covered with a kind of flammable substance, which is gluey to the touch, and has a very fragrant, lemony aroma; but if it takes fire, it goes off with a flash all over the plant. The name “burning bush” derives from the volatile oils produced by the plant, which can catch fire readily in hot weather, leading to comparisons with the burning bush of the Bible, including the suggestion that this is the plant involved there. The daughter of Swedish botanist Carl Linnaeus is said to have ignited the air once, at the end of a particularly hot, windless summer day, above Dictamnus plants, using a simple matchstick.