The plant is intermediate in appearance between its parents, groundsel and Oxford ragwort. More current information is contradictory about the dangers of the ingestion of groundsel. Other common names include Madagascar groundsel and fireweed. It has the common names of arrowleaf ragwort, arrowleaf groundsel, and arrowleaf butterweed. There is also a substantial infestation of groundsel bush. The oomycete does not infect tomato, apple, potato, turnip, cauliflower, chickweed, groundsel, or corn spurry. It is variously known as the woodland ragwort, heath groundsel, or mountain common groundsel. Other names are ground plate, ground sill, groundsel, and midnight sill. It is known as the sticky ragwort, sticky groundsel or stinking groundsel. Common names include coast groundsel, dune groundsel and variable groundsel. Pippenalia is a genus of Mexican plants in the groundsel tribe within the sunflowerfamily. Telanthophora is a genus of Mesoamerican plants in the groundsel tribe within the daisy family. Syneilesis is a genus of East Asian plants in the groundsel tribe within the Asteraceae. Dendrosenecio kilimanjari is a giant groundsel found atop Mount Kilimanjaro in Africa.