this is Pallenis spinosa, the Spiny Starwort or Spiny Golden Star, from the family Asteraceae (Compositae)

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Photo credit: © Franz Neidl / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: asteraceae, asteriscus, buphthalmum, christ, compositae, golden, horizontal, italy, medical, pallenis, spinosa, spinosum, spinosus, spiny, star, starwort, thorn