scentless mayweed (tripleurospermum inodorum). flowering capitulum closeup

asteraceae baldr 039 brow belarus flora compositae tripleurospermum inodorum androecium anther anthesis black background botanical science botany capitulum closeup connate corolla disc floret false chamomile filament flower focus stacking gynoecium head inflorescence ligulate ligule macro mayweed nature peduncle pistil plants pollen ray receptacle scentless solitary stamen stigma style terminal tubular virtual herbarium wild channeled