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目前被植物学家确认的烟草已有66个品种。但被人们栽培食用的只有两个品种:一个是普通烟草,又叫红花烟草。这种烟草宜种植于较温暖地带。一种是黄花烟草,这种烟草耐寒能力较强,适宜于在低温地区栽培。此外还有一种由智利人培育出的白花烟草,绿叶白花,十分美艳,在国外只作为观赏花卉,一般都不把它列在烟草的范围之内。
At present, 66 species of tobacco have been confirmed by botanists. However, there are only two varieties cultivated and consumed by people: one is ordinary tobacco, also known as safflower tobacco. This tobacco should be planted in the warmer area. One is yellow tobacco, which has strong cold tolerance and is suitable for cultivation in low temperature areas. There is also a kind of white flower bred by Chileans, green leaves white flowers, very beautiful, only as ornamental flowers abroad, generally do not put it in the range of tobacco.