Before revision: In Crepis and some other herbaceous perennial species, a polyploid complex may arise where there are at least 2 genetically isolated diploid populations, in addition to auto- and allopolypoloid derivatives that coexist and interbreed (hybridise).
After revision: In Crepis and some other herbaceous perennial species, a polyploid complex may arise where there are at least 2 genetically isolated diploid populations, in addition to auto- and allopolyploid derivatives that coexist and interbreed (hybridise).