Hooker's False Mayweed (Tripleurospermum hookeri Sch.Bip.)

Also known as Hooker's mayweed; also classified as Tripleurospermum phaeocephalum (Rupr.) Pobed.

BONAP treats this as a subspecies of false mayweed (Tripleurospermum maritimum), specifically as ssp. phaeocephalum.