Cobblers peg(seed). Bidens pilosa
Native to Europe
Found in disturbed areas usually exposed to full sun. Invades dunes, headlands and sides of tracks along the entire coast.
Form: Herb up to 2m high though mainly seen shorter in coastal areas.
Flower: Yellow sometimes white. Flowers all year.
Fruit/Seed: Seed black, 1cm long with forked tip which attaches to clothing and fur.
Control: Easily pulled by hand being careful to remove roots as well. Seeds should be bagged and disposed of.
Chemical controls are available. Spraying with glyphosphate is useful for large infestations.