Orchid families

With round or oval bulbs:
Aceras
Anacamptis
Chamorchis
Himantoglossum
Neotinea
Ophrys
Orchis

With creeping rhizoms:
Cephalanthera
Cypripedium
Epipactis
Goodyera
Limodorum
Listera

With irregular rhizoms:
Calypso
Corallorhiza
Epipogium
Neottia

With pseudobulbs:
Hammarbya
Liparis
Malaxis