Floral structure and pollen morphology of two zinc violets (Viola lutea ssp. calaminaria and V. lutea ssp. westfalica) indicate their taxonomic affinity to Viola lutea

Increased genetic diversity of Viola tricolor L. (Violaceae) in metal-polluted environments

(2011) A. Słomka et al.   CHEMOSPHERE

Metal Hyperaccumulation in Plants

(2010) Ute Krämer   Annual Review of Plant Biology

Decline in metallophytes in tertiary polluted floodplain grasslands in the Netherlands: experimental evidence for metal and nutritional changes in soil as driver factors

(2010) E. C.H.E.T. Lucassen et al.   CHEMISTRY AND ECOLOGY

CROSSINGS IN MELANIUM-VIOLETS

(2010) KARL B. KRISTOFFERSON   HEREDITAS

Molecular mechanisms of metal hyperaccumulation in plants

(2009) Nathalie Verbruggen et al.   NEW PHYTOLOGIST

Fitness and genetic variation ofViola calaminaria, an endemic metallophyte: implications of population structure and history

(2008) J.-P. Bizoux et al.   PLANT BIOLOGY