Interpopulation variability in seed traits may drive the regeneration capacity of a species to colonize different environments. In present study, we evaluated variation physical (mass / size, water imbibition, shape index) and physiological (germination) five Polygonaceae species. Seeds Polygonum lapathifolium var. salicifolium , P. Reynoutria japonica Rumex trisetifer R. obtusifolius were coll...