vesiculosus,-a,-um from L. vesicula (dim. of vesca, bladder), small bladder, small blister: with lots of vesicules or blisters, vesiculous, inflated etc
 
129942 299121 Cuphea vesiculosa Koehne C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 13(2): fasicle 73, (Callitrichineae; Vochysiaceae, Trigoniaceae; Onagraceae; Lythraceae; Halorageae): t. 48 (1877)
 
138642 590214 Leandra vesiculosa Cogn. C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 14(4): fasicle 99, (Melastomaceae, tribus III - VIII): t. 35 (1886)
 
461582 1032383 Trifolium vesiculosum Savi J. Lindley, Edwards’s Bot. Reg., vol. 17 : t. 1408 (1831) [M. Hart]