The plants have alternate leaves and small inflorescences which are epiphyllous ( growing from the leaves ).
2.
Many species of this genus are characterised by having epiphyllous flowers, which emerge from the leaf itself, rather than the more usual site of a leaf axil, a plant axis, or its inflorescence.
3.
;Androecium : Six stamens in two trimerous whorls, with free filaments, usually epiphyllous ( fused to tepals ) and diplostemonous ( outer whorl of stamens opposite outer tepals and the inner whorl opposite inner tepals ), although " Scoliopus " has three stamens opposite the outer tepals.