The 79 accepted and known species of Nicotiana include:The Plant List
Nicotiana acaulis Speg.Knapp et al. (2004) Nomenclatural changes and a new sectional classification in Nicotiana (Solanaceae) Taxon. 53 (1):73–82. Nicotiana acuminata (Graham) Hook. – manyflower tobacco, many-flowered tobacco Nicotiana africana Merxm. Nicotiana alata Link & Otto – jasmine tobacco, sweet tobacco, winged tobacco, Persian tobacco, tanbaku (Persian) Nicotiana ameghinoi Speg. Nicotiana amplexicaulis N. T. Burb. Nicotiana arentsii Goodsp. Nicotiana attenuata Torrey ex S. Watson – coyote tobacco Nicotiana azambujae L. B. Smith & Downs Nicotiana benavidesii Goodsp. Nicotiana benthamiana Domin – benth, benthi Nicotiana bonariensis Lehm. Nicotiana burbidgeae Symon Nicotiana cavicola N. T. Burb. Nicotiana clevelandii A. Gray – Cleveland's tobacco Nicotiana cordifolia Phil. Nicotiana corymbosa J. Rémy Nicotiana cutleri D'Arcy Nicotiana excelsior (J. M. Black) J. M. Black Nicotiana forgetiana Hemsl. Nicotiana forsteri Roem. & Schult. (previously designated N. debneyi) Nicotiana fragrans Hooker Nicotiana glauca Graham – tree tobacco, Brazilian tree tobacco, shrub tobacco, wild tobacco, tobacco plant, tobacco bush, tobacco tree, mustard tree Nicotiana glutinosa L. Nicotiana goodspeedii H.-M. Wheeler Nicotiana gossei Domin Nicotiana hesperis N. T. Burb. Nicotiana heterantha Kenneally & Symon Nicotiana ingulba J. M. Black Nicotiana kawakamii Y. Ohashi Nicotiana knightiana Goodsp. Nicotiana langsdorffii Weinm. – Langsdorff's tobacco Nicotiana linearis Phil. Nicotiana longibracteata Phil. Nicotiana longiflora Cav. – longflower tobacco, long-flowered tobacco Nicotiana maritima H.-M. Wheeler Nicotiana megalosiphon Van Huerck & Müll. Arg. Nicotiana miersii J. Rémy Nicotiana mutabilis Stehmann & Samir– color-changing tobacco, flowering tobacco Nicotiana nesophila I. M. Johnston Nicotiana noctiflora Hook. Nicotiana nudicaulis S. Watson Nicotiana occidentalis H.-M. Wheeler – native tobacco Nicotiana obtusifolia M. Martens & Galeotti (previously designated N. trigonophylla) – desert tobacco, punche, "tabaquillo" Nicotiana otophora Griseb. Nicotiana paa Mart. Crov. Nicotiana palmeri A. Gray Nicotiana paniculata L. – smallflower tobacco, small-flowered tobacco Nicotiana pauciflora J. Rémy Nicotiana petuniodes (Griseb.) Millán. Nicotiana plumbaginifolia Viv. – Tex-Mex tobacco Nicotiana quadrivalvis Pursh (replaces the following older classifications: N. multivalvis Lindl., N. plumbaginifolia Viv. var. bigelovii Torrey, N. bigelovii (Torrey) S. Watson) – Indian tobacco Nicotiana raimondii J. F. Macbr. Nicotiana repanda Willd. – fiddleleaf tobacco, fiddle-leafed tobacco Nicotiana rotundifolia Lindl. Nicotiana rustica L. – Aztec tobacco, strong tobacco, mapacho Nicotiana setchellii Goodsp. Nicotiana simulans N. T. Burb. Nicotiana solanifolia Walp. Nicotiana spegazzinii Millán Nicotiana stenocarpa H.-M. Wheeler Nicotiana stocktonii Brandegee Nicotiana suaveolens Lehm. – Australian tobacco Nicotiana sylvestris Speg. & Comes – woodland tobacco, flowering tobacco, South American tobacco Nicotiana tabacum L. – common tobacco, domesticated tobacco, cultivated tobacco, commercial tobacco (grown for the production of cigars, cigarillos, cigarettes, chewing tobacco, dipping tobacco, snuff, snus, etc.) Nicotiana thrysiflora Bitter ex Goodsp. Nicotiana tomentosa Ruiz & Pav. Nicotiana tomentosiformis Goodsp. Nicotiana truncata D. E. Symon Nicotiana umbratica N. T. Burb. Nicotiana undulata Ruiz & Pav. Nicotiana velutina H.-M. Wheeler Nicotiana wigandioides Koch & Fintelm. Nicotiana wuttkei Clarkson & Symon
Five additional species that are listed by APNI are: Nicotiana gascoynica M.W. Chase & Christenh. Nicotiana hoskingii M.W. Chase, Palsson & Christenh. Nicotiana insecticida M.W. Chase & Christenh. Nicotiana karijini M.W. Chase & Christenh. Nicotiana yandinga M.W. Chase & christenh.
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