scentless mayweed (tripleurospermum inodorum). budding capitulum closeup

asteraceae baldr 039 brow belarus flora compositae tripleurospermum inodorum black background botanical science botany closeup disc floret false chamomile focus stacking involucral bract involucre ligulate ligule macro mayweed multiseriate narrowly triangular nature oblong phyllary plants ray scarious margin scentless triangularovate virtual herbarium wild glabrous