Brassicaceae relationships within the Brassicaceae have not always been well resolved yet. It has long been clear that the Aethionemae are sister of the remainder of the family. One analysis from 2014 represented the relation between 39 tribes with the following tree. The name "Brassicaceae" comes to international scientific vocabulary from New Latin, from "Brassica", the type genus, + "-aceae", a standardized suffix for plant family names in modern taxonomy. The genus name comes from the Classical Latin word "brassica", referring to cabbage and other cruciferous vegetables. The alternative older name, Cruciferae, meaning "cross-bearing", describes the four petals of mustard flowers,
Trigonidium (plant) base with sepals spreading. The sepals are larger than the petals and the petals are larger than the lip. The lip is trilobed and not spurred. The flowers have shiny pads and eyespots that lure male bees to perform pseudocopulation with the blossoms. Plants of the genus grow well in pots with standard epiphyte mix, in intermediate conditions with light shade and high humidity. Plants should be kept dry but not so dry that pseudobulbs shrivel. Trigonidium (plant) Trigonidium, abbreviated as Trgdm in horticultural trade, is a genus of orchids comprising roughly twenty species found from Mexico to Brazil. "Trigonidium"