any solanaceous plant of the American and Australian genus Nicotiana, such as tobacco, having white, yellow, or purple fragrant flowers
Word origin
C16: see nicotine
nicotiana in American English
(nɪˌkoʊʃiˈeɪnə)
noun
any of a genus (Nicotiana) of New World plants of the nightshade family, including tobacco and several species with fragrant flowers, grown as ornamentals