This widespread southeastern species needs better circumscription (F). Based largely on Widrlechner (1998), enslenii differs from most other taxa in section Flagellares as follows: primocane leaves mostly ternate (versus ternate or quinate); inflorescences generally 5-8 cm long (versus 5-20 cm), with single flowers (versus 1-12 flowers). Ladd & Thomas (2015) emphasized that leaflets generally have glabrate lower surfaces, and the terminal ones elliptic (versus more ovate), but Widrlechner states "thinly pubescent" and "elliptic-rhombic". The map includes a few records of the closely related glandular plants (perhaps transitional to the invisus group), R. leviculus Bailey and R. scambens Bailey (M). An additional coll. from CLAR (M. Medley & J. Thieret 10755-84 for WKY) is only a primocane, but differs from all other described species of the Flagellares in having obovate subentire leaflets. Some of the taxa currently included with flagellaris (especially nefrens and steelei) could be considered at least transitional to enslenii. This complex will be studied further when M. Medley's colls. are processed.