Aristolochiales
plural noun
Aris·to·lo·chi·a·les
: an order of metachlamydeous dicotyledonous plants embracing the families Aristolochiaceae, Rafflesiaceae, and Hydnoraceae and distinguished by the tubular petaloid perianth, inferior ovary, and numerous stamens free from the perianth
Word History
Etymology
New Latin, from Aristolochia + -ales