monopetalous

monopetalous

(ˌmɒnəʊˈpɛtələs)
adj
(Botany) (of flowers) having only one petal
References in periodicals archive ?
Very large campanulate monopetalous corolla: at the lower end of a very long curving tube a voluminous protuberance contains a very abundant nectar.
Thus I affirm that the division of monocotyledons from dicotyledons, and the distinction of Gramineae from Cyperaceae, are real, because in these cases, I arrive at the same result by the reproductive and the nutritive organs: while the distinction of monopetalous and polypetalous, of Rhodoraceae and Ericineae appears to me artificial, because I can arrive at it only by the reproductive organs (Whewell 1840, 1, 520, quoting A.