Le Rouge et le Noir (IMAGE)

BMC (BioMed Central)

Le Rouge et le Noir

Caption

Dahlia variabilis hort. is a popular garden flower. Continuous dahlia breeding worldwide has led to the availability of a huge number of cultivars – 20,000 varieties – many of them showing red hues. However, black hues of dahlia flowers occur rarely, in comparison.

Credit

Dr. Heidi Halbwirth

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