Appearance
''Glebionis segetum'' is a herbaceous perennial plant growing to 80 cm tall, with spirally arranged, deeply lobed leaves 5–20 cm long. The flowers are bright yellow, produced in capitulae 3.5-5.5 cm in diameter, with a ring of ray florets and a centre of disc florets.
Naming
''Glebionis segetum'' was formerly treated in the genus ''Chrysanthemum'', but under a 1999 decision of the International Botanical Congress, that genus has been redefined with a different circumscription to include the economically important florist's chrysanthemum.
Status
''Glebionis segetum'' is widely naturalised outside of its native range, colonising western and central Europe with early human agriculture; it can be an invasive weed in some areas.References:
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