Subfam. Rutoideae Arn. [clade B p.p.].

Genera [5]: Boenninghausenia, Chloroxylon, Psilopeganum, Ruta, Thamnosma; Number of species: 20; Characteristics: Mainly perennial herbs or subshrubs, rarely trees ( Chloroxylon); schizogenous oil glands present; leaves alternate, simple or variously compound or deeply lobed; flowers 4- or 5-merous, usually diplostemonous; gynoecia syncarpous or fused at style, carpels 1–3, ovules 4 to several per locule; fruits dehiscent; endosperm copious; base chromosome number x = 9 or 10. Range: temperate and tropical regions of the Northern Hemisphere as well as southern Africa.