| Paranephelius is composed of acaulescent herbs with showy, yellow capitula, sessile in the center of a basal rosette of leaves, often with bullate leaf surfaces. |
| Megalastrum crenulans is characterized by indusiate sori and bullate scales on the pinna rachises and costules. |
| A vigorous variety, the Amigne has from medium to large leaves, rounded in form and slightly bullate without pronounced indentation. |
| The leaves are stalked, have a serrated outline, covered with stiff hair and their shape is ovoid and broad or bullate, hence the origin of species name. |
| Begonia longgangensis has remarkably long stolons and B. ferox is characterized by the prominent bullate leaves. |
| The Labrum is always swollen and bullate, and though hollowed out, is never notched in the middle. |
