Séneçon anguleux

Climbing Groundsel, Senecio angulatus, is a woody, scrambling perennial vine in the family Asteraceae native to South Africa, particularly the Western and Eastern Cape provinces, where it grows in coastal scrub, fynbos margins, and forest edges. The species produces yellow daisy-like flower heads in terminal clusters from autumn through spring, which are followed by fluffy white achenes dispersed by wind. Climbing Groundsel has become widely naturalized and highly invasive in many parts of the world where it has been introduced as a garden ornamental, including Australia, New Zealand, and parts of Europe. In Australia, it is listed as a major environmental weed in southeastern states, particularly New South Wales and Victoria, where it invades coastal heath, dry sclerophyll forest, and urban bush remnants, smothering native vegetation with dense scrambling growth. The plant regenerates readily from stem fragments and produces abundant wind-dispersed seeds. Control in invaded habitats requires sustained effort combining physical removal and herbicide application. In its native South African range, Senecio angulatus is part of diverse coastal scrub communities and is not considered threatened. The genus Senecio is one of the largest flowering plant genera in the world, with species ranging from annuals to giant tree groundsels in tropical alpine zones.