Examples from the Web for nicotiana
Nicotiana undulata, or New Holland tobacco: radical leaves obovate, obtuse, somewhat wavy; stem-leaves sharp-pointed.
Nicotiana pusilla, or primrose-leaved tobacco: leaves of oblong oval, radical; flowers in racemes, acute.
Nicotiana Angustifolia, or narrow-leaved Virginian tobacco; rises with an upright branching stalk, four or five feet high.
Fig. 97 represents two flowers of Nicotiana affinis, one of which has been cut.The Nursery Book|Liberty Hyde Bailey
This plant (nicotiana tabacum) is indigenous to America, but the most valuable is that raised in Cuba.History of Cuba; or, Notes of a Traveller in the Tropics|Maturin M. Ballou