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Drone fly on ragwort Jacobaea vulgaris. In the United Kingdom, where the plant is native, ragwort provides a home and food source to at least 77 insect species. Thirty of these species of invertebrate use ragwort exclusively as their food source [18] and there are another 22 species where ragwort forms a significant part of their diet.
Certain members of the genus Jacobaea (a segregate of Senecio): Jacobaea vulgaris, (common) ragwort or, only in the USA tansy ragwort, a very common wild flower in Europe, widely naturalised elsewhere; Jacobaea aquatica, water ragwort, marsh ragwort; Jacobaea erucifolia, Hoary ragwort; Certain members of the genus Packera including:
Common ragwort is a common name for several plants and may refer to: Jacobaea vulgaris, native to northern Eurasia; Pericallis × hybrida
Jacobaea is a genus of flowering plants in the tribe Senecioneae and the family Asteraceae. Its members used to be placed in the genus Senecio , [ 2 ] but have been separated into the segregate genus Jacobaea on the basis of molecular phylogenetics in order to maintain genera that are monophyletic .
Common ragwort - Jacobaea vulgaris, and some other plants of the genus Jacobaea (once called cankerweed). Rattlewort - rattlebox, Crotalaria sagittalis. Ribwort - Plantago lanceolata. Hen plant. English plantain, the common plantain introduced into the United States from Europe. Rosewort - A plant of the rose family, Rosaceae.
It is used as an agent of biological pest control against the nectar-rich noxious weed known as ragwort (Senecio jacobaea reclassified as Jacobaea vulgaris). The adult beetle is light golden brown in color and between 2 millimetres (0.079 in) and 4 millimetres (0.16 in) long. The female is larger than the male, especially when gravid.
Senecio / s ɪ ˈ n iː ʃ i. oʊ / [2] is a genus of flowering plants in the daisy family that includes ragworts and groundsels. Variously circumscribed taxonomically, the genus Senecio is one of the largest genera of flowering plants.
Bittercress – Barbarea vulgaris, Cardamine bulbosa, Cardamine hirsuta. Hairy bittercress – Cardamine hirsuta; Bittersweet – Solanum dulcamara. Trailing bittersweet – Solanum dulcamara; Bitterweed – Any plant in the genus Ambrosia, especially Ambrosia artemisiifolia, Artemisia trifida, Helenium amarum