Keys to species Rosenvingea Borgesen

1	Plants tangled and subrepent, or if eect most abundantly branched in the upper part; branches often flattened and adherent	R. intricata
1	Plants erect, generally taller, the branching more evenly distributed	2
2	Diffusely branched; branching irregular to subdichotomoous, the divisions similar to the axis	R. sanctae-crucis
2	Sparingly branched, chiefly near the base; the branches slender, flexuous, tapering	R. floridana