Key for Guapira Aubl.

1Inflorescence-branches glabrous
1'Inflorescence-branches rufous-puberulent or -tomentellous
2Leaves usually broadly ovate, often cuspidate; female perianth ellipsoid or infundibuliform, not constricted at apex, with acute, erect lobes
2'Leaves usually elliptical or broadly oblong, not cuspidate
3Female perianth densely rufous-puberulent, narrowly tubular
3'Female perianth lightly rufous-puberulent, subtubular or ellipsoid