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,
Petals of Blood flourishes and are contrasted strongly with the village of Ilmorog. In its pursuit for the modern, Kenya adopts capitalism at the expense of tradition as the city begins 'to encroach upon and finally swallow the traditional and the rural.' As time progresses, Ilmorog changes vastly, as do its inhabitants. With its modernization, influenced greatly by capitalism and the chance to increase trade, Munira reflects on these changes and how they link with capitalism, saying that 'it was New Kenya. It was New Ilmorog. Nothing was free.' Agriculture is an important theme in "Petals of Blood", most notably in the town