orange coneflower (rudbeckia fulgida). flowering capitulum closeup

asteraceae belarus flora compositae rudbeckia fulgida androecium anther anthesis black background botanical science botany capitulum closeup connate corolla disc floret filament flower focus stacking gynoecium head inflorescence ligulate ligule macro nature orange coneflower peduncle perennial pistil plants pollen ray receptacle stamen stigma style tubular virtual herbarium hemispheric