Extensive hybridization in Ranunculus section Batrachium (Ranunculaceae) in rivers of two…
Variation, taxonomy and distributionIn the studied Lithuanian rivers, R. aquatilis, R. fluitans, R. kauffmannii, sterile hybrids R. aquatilis × R. circinatus, R. circinatus × R. fluitans, R. circinatus × R. kauffmannii and two complex…