https://www.gardenersworld.com/plants/beta-vulgaris-subsp-cicla-var-flavescens/
Plant profile of Beta vulgaris subsp. cicla var. flavescens from BBC Gardeners' World Magazine.
beta vulgarisgardeners worldsubspciclavar
https://www.rhs.org.uk/plants/122457/beta-vulgaris-subsp-cicla-var-flavescens/details
Find help & information on Beta vulgaris subsp. cicla var. flavescens Swiss chard Annual Biennial from the RHS
beta vulgarisswiss chardsubspciclavar