Senecio floccosus Schur; Senecio flosculosus Jord. [47][48][49][50], Certain pyrrolizidine alkaloids are non-toxic precursors that are converted to toxic metabolites in the body in a process called toxification[51], Carl Linnaeus is cited to have claimed that "goats and swine eat this common plant freely, cows being not partial to it and horses and sheep declining to touch it, but not only are caged birds fond of it (the seeds), but its leaves and seeds afford food for many of our wild species (rabbits were given as an example). Distribution, Germination Characteristics, and Management of Common Groundsel (Senecio vulgaris) in … There has been no significant change in the distribution of S. vulgaris since the 1962 Atlas, although there appears to have been a decline in the Scottish Highlands, possibly due to abandoning of marginal cultivations. Range map-Senecio cineraria-Canary Islands.svg 1,055 × 480; 25 KB. Add Resources. Description: Erect annual herb 10–50 cm high, ± succulent, base usually purplish; glabrous or with scattered hairs. Senecio vulgaris var. The distribution range of Senecio vulgaris L. is climatically modelled using its archeophytic range and the monthly means of precipitation and temperature. The average weight of 1000 seeds is 0.21 gram (2,200,000 seeds per pound) and experienced a 100% germination success before drying and storage and an 87% germination success after drying and 3 years of cool dry storage. The United States Department of Agriculture (USDA), Natural Resources Conservation Service Plants Profile Database[22] considers it to be native to all 50 of the United States of America, Canada, Greenland, Saint Pierre and Miquelon,[1] the same USDA through the Germplasm Resources Information Network (GRIN)[23] considers it to be native only to parts of Afro-Eurasia. [13] Variation in capitula morphology, seed dormancy and growth form have been observed in different S. vulgaris populations (Robinson et al., 2003). Ascending to erect, somewhat fleshy, weakly pubescent annual to c. 50 cm high. GW: Gangwon-do, GB: Gyeongsangbuk-do, JN: Jeollanam-do, and JJ: Jeju-do. The name for the genus Senecio is probably derived from senex (an old man), in reference to its downy head of seeds; "the flower of this herb hath white hair and when the wind bloweth it away, then it appeareth like a bald-headed man"[11] and like its family, flowers of Senecio vulgaris are succeeded by downy globed heads of seed. Capitula homogamous, discoid hermaphrodite, in dense terminal corymbs, campanulate, c. … In an investigation of two annual Senecio species (S. vernalis and S. vulgaris), Hartmann and Zimmer (1986) found that the highest PA content occurred in the capitula, and that PA concentration (1.0-1.4 mg/g fresh weight) was 5- to 10-fold higher than in the roots and leaves. Jacobaea vulgaris, syn. denticulatus (Mueller) N.Hylander variety Senecio vulgaris var. The seed of common groundsel is a good green food for canaries and finches and it is available all year round. Its further distribution is less clear. Erect, annual, sparsely cobwebby to glabrous, 10-30 cm tall, branched herb. [34] Seeds are dispersed by wind and also cling to clothing and animal fur,[9] and as contaminates of commercially exchanged seeds; the distribution of this plant throughout the world has been difficult if not impossible to contain. Range map-Senecio cineraria-Africa.svg 1,200 × 1,230; 69 KB. Distribution. 1875. Senecio vulgaris is an erect herbaceous annual plant growing up to 45 cm tall (Stace, 1997), has a thick taproot, and possesses an ephemeral strategy typical of many weedy species (Weiner et al., 2009). Alternate, sparsely hairy to smooth with variable leaf shape. nudus (Weston) J. Sojak; Senecio jacobaea var. and become sticky when wet. Leaves sessile, c. oblong, 3–8 cm long, 6–20 mm wide, pinnatifid with lobes cleft c. halfway to midrib, and irregularly serrate; lower leaves tapered toward base, upper leaves with broad, stem-clasping bases; surfaces with scattered, long hairs or rarely quite glabrous. [11] More current information is contradictory about the dangers of the ingestion of groundsel. Common groundsel – Senecio vulgaris. Groundsel, a relative of ragwort, is a very common weed of wasteland and gardens with dry soil. viscosus. Laboratory tests have suggested maximum seed scattering distances of 4.2 and 4.6 yd (1.9 and 2.9 m) at wind speeds of 6.8 and 10.2 mph (10.9 and 16.4 km/h) respectively (affected by plant height),[9] suggesting that it was more than wind that spread these groundsel seeds throughout the world. We use cookies to help provide and enhance our service and tailor content and ads. Senecio vulgaris var. By continuing you agree to the use of cookies. In the climatic model of the range of S. vulgaris there were considerable congruencies in its archeophytic and its neophytic parts. [3]:764 The inflorescences usually lack ray florets, the yellow disc florets mostly hidden by the bracts giving the flowers an inconspicuous appearance. In the meantime, please consult other species distribution map providers listed in the Other resources panel below. Climatic modelling of plant distribution ranges may contribute significantly to the understanding of the adventitious plants’ spread. 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