WordNet sense 1 (deciduous shrub having purple capsules enclosing scarlet seeds):

wahoo, Euonymus atropurpureus

WordNet sense 2 (Eurasian perennial herb with white flowers that emit flammable vapor in hot weather):

dittany, fraxinella, Dictamnus alba, gas plant

WordNet sense 3 (densely branched Eurasian plant; foliage turns purple-red in autumn):

belvedere, fire-bush, summer cypress, Bassia scoparia, fire bush, Kochia scoparia