Biscutella

Hairy species crossed with their smooth varieties produce hairy hybrids, as in some wheats, in the campion (_Lychnis_), in _Biscutella_ and others.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891

_Biscutella laevigata glabra_; lack of prickles gives the varieties known as _inermis, as for instance, _Ranunculus arvensis inermis_.

Species and Varieties, Their Origin by Mutation Hugo de Vries 1891