Ключевые слова: ageratum, ageratum houstonianum, asteraceae, belarus flora, black background, bluemink, blueweed, botanical illustration, botanical science, botany, closeup, compositae, discoid, flossflower, focus stacking, involucral bract, involucre, macro, marcescent, mexican paintbrush, nature, phyllary, plants, pussy foot, virtual herbarium,