Morphological and genetic variation in ecologically central and marginal populations of Rumex acetosella L. ( Polygonaceae).

Six ecologically central (old field) and marginal (strip mine) populations of the hexaploid Rumex acetosella were collected and grown under uniform conditions. There are small, but significant amounts of isozyme differentiation between central and marginal populations, while there was no such differentation for morphological characters. -from Authors