sunflower bud on pastel green background

agriculture anatomy art artistic asteraceae background beginning begins black bloom blossom botany bright brown bud center circle close closeup colorful confectionery crop decorative edible face floral florets garden green growing helianthus heliotropism isolated leaves light macro nature new offset oilseed open opening orange pale pastel pattern perennial petals pollen portrait round seeds sepal shadow shadowed sunflower sunlight texture tiny ukraine verticillatus view yellow