Smoke It is commonly an unwanted by-product of fires including stoves and lamps and fireplaces, but may also be used for pest control cf. fumigation , communication smoke signals , defense smoke-screen..
Tobacco Nicotiana excelsior Nicotiana forgetiana Nicotiana glauca Nicotiana glutinosa Nicotiana langsdorffii Nicotiana longiflora Nicotiana obtusifolia Nicotiana paniculata ..