clasping coneflower (rudbeckia amplexicaulis). flowering capitulum closeup

androecium anther anthesis asteraceae belarus flora black background botanical science botany capitulum clasping coneflower closeup compositae conical connate corolla disc floret dracopis amplexicaulis filament flower focus stacking gynoecium head inflorescence ligulate ligule macro nature ovoid peduncle pistil plants pollen radiate ray rudbeckia stamen stigma style tubular virtual herbarium