northern fleabane (erigeron strigosus). opening capitulum closeup

inflorescence flower belarus flora black background closeup focus stacking macro nature plants botanical science botany virtual herbarium peduncle asteraceae compositae involucre capitulum phyllary involucral bract floret anthesis head ray ligulate ligule pedicel erigeron phalacroloma strigosus septentrionale northern fleabane var septentrionalis daisy common eastern prairie