Kolkwitzia Graebner. Beautybush.
A monotypic genus, a shrub, of c. China. Generic circumscription has been controversial, with a radical lumping proposed by Christenhusz (2013) but not widely supported (Wang et al. 2015, and others).
Ref: Christenhusz (2013); Hofmann & Bittrich (2016) In Kadereit & Bittrich (2016); Wang et al. (2015). Show full citations.