chard or swiss chard (beta vulgaris subsp. vulgaris, cicla-group and flavescens-group)

chard swiss beta vulgaris subsp cicla-group flavescens-group green leafy vegetable cultivars agriculture background chard colored colorful colour crop diet foliage food fresh garden green growth harvest health healthy leaf leafy mangel mangold meal mineral multicolor multicolored natural nature nutrients nutrition orange organic outdoor perpetual pink plant purple rainbow red spinach summer swiss variegated vegetable vegetarian vitamin yellow yield