[mod.L., f. ēvolvĕre (see EVOLVE). Cf. CONVOLVULUS.] Bot. A genus of the Nat. Order Convolvulaceæ, containing about 60 species, natives chiefly of tropical America.
1847. in Craig.
1866. Treas. Bot., Evolvulus … bear entire usually small nearly sessile leaves, and small flowers, &c.
1884. in Syd. Soc. Lex.
