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烟属(Nicotiana)中原已公认有64个物种(Species),近来又在南美洲和西南非洲发现两个暂时的新种,迄今烟属包括66个物种。在这些物种中,被人吸食的主要是红花烟草或称为普通烟草(Nicotiana tabacum)和黄花烟草(Nicotiana rustica)。
Nicotiana The Central Plains has recognized 64 species (Species) and recently found two more transient new species in South America and Southwest Africa. To date, there have been 66 species. Among these species, smoked mainly are Nicotiana tabacum or Nicotiana tabacum and Nicotiana rustica.