Flowers of the gas plant.
gas plant definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a perennial plant (Dictamnus albus) of the rue family, with fragrant white, pink, or purple flowers that on hot nights give off a flammable gas
gas plant definition by American Heritage Dictionary
A Eurasian plant (Dictamnus albus) having aromatic foliage and white flowers and emitting a flammable vapor. Also called burning bush, dittany, fraxinella.