23 November 2010
A real-life "burning bush"
Dictamnus albus, "known variously as Burning-bush, False Dittany, White Dittany, Gas-plant and Fraxinella" is a perennial herb, that - as the video demonstrates - produces a flammable substance.
Some sources I've read describe the substance as a sticky tar or an oil; others say it is a methane-like gas. I don't have time to sort that out - just wanted to share the video, because it's quite impressive. Properly speaking, it's not the bush that's burning - just the gas excreted by the bush - so I'd rather call it the "gas plant."
And that way there wouldn't be any confusion with Euonymus - another shrub colloquially referred to as a "burning bush" because of its brilliant autumnal foliage.
Video via Now I Know and The Centered Librarian.
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The flames appear only when the hand touches the bush. Why is that?
ReplyDeleteBecause the hand is flicking a BIC lighter.
ReplyDeleteThe compound responsible for the flames might be ethylene (also known as ethene), a simple hydrocarbon gas that plants use as a hormone. That would also explain the "methane-like gas" comment.
ReplyDeleteBut, you do not have to use a lighter. It can just burst into a flame and it never damages the bush.
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