aculeatiflorus,-a,-um from L. aculeatus (from L. aculeus, prickle), prickly, thorny, spine-like; florus, flower
 
21660512 891833 Rubus taitoensis species Hayata [127889404 Rubus aculeatiflorus species Hayata] B. Hayata, Icon. Pl. Formos., vol. 7 : p. 17, fig. 12a (1918)