Ключевые слова: acute apex, androecium, anther, anthesis, belarus flora, bifid, black background, botanical illustration, botanical science, botany, brassicaceae, calyx, closeup, common whitlowgrass, corolla, cruciferae, draba, draba verna, early whitlow grass, erophila, erophila verna, filament, floral bud, flower, flower bud, focus stacking, gynoecium, lanceolate, macro, nailwort, nature, obovate, pedicel, petal, plants, pollen, sepal, shadflower, simple hair, spring draba, stamen, stigma, style, vernal whitlow grass, virtual herbarium, whitlowgrass,