Mon·o·pet·al·ous a. Bot. Having only one petal, or the corolla in one piece, or composed of petals cohering so as to form a tube or bowl; gamopetalous.
Note: ☞ The most recent authors restrict this form to flowers having a solitary petal, as in species of Amorpha, and use gamopetalous for a corolla of several petals combined into one piece. See Illust. of Gamopetalous.
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