Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas Author Linnaeus, Carolus text 1753 Laurentius Salvius Stockholm https://doi.org/10.5962/bhl.title.669 book 10.5281/zenodo.3931989 3931989 Euphorbia helioscopia , spec. nov. 40. Euphorbia umbella quinquefida: trifida: dichotoma, involucellis obovatis, foliis cuneiformibus serratis. Diss. euph.42. Euphorbia foliis crenatis, umbella universali quinquefida pentaphylla, partialibus trifidis, propriis triphyllis. Hort. cliff. 198. Fl. suec. 436. * Roy. lugdb. 197. Dalib. paris. 156. Euphorbia inermis, foliis subrotundis crenatis. Fl. lapp. 220. Tithymalus helioscopius. Bauh. pin. 291. Fuchs. hist. 811. Habitat in Europae cultis. ☉ Umbellae radii bis trifidi, dein dichotomi & Involucro similia.