Electronic Flora of South Australia species Fact Sheet
Citation: M. Lawr., J. Adelaide Bot. Gard. 7:292 (1985).
Synonymy: S. georgianus DC. var. latifolius J. Black, Fl. S. Aust. 613 (1929).
Common name: (Grey) groundsel.
Biology: No text
Taxonomic notes: S. gawlerensis was treated as var. latifolius of S. georgianus DC. by Black (1929) Fl. S. Aust. 613 but the two species are quite distinct in capitulum and leaf morphology. S. georgianus DC. is a poorly understood discoid species now thought to be extinct. It is known only from a few scattered early collections from temperate Australia (Tas. to south-western W.Aust.), including three from the northern Lofty Ranges. It was collected in 1844-5 by Behr from Bethany (specimens presumably at Halle) and from "Salt Gulley" in March, 1849 (two sheets in the National Herbarium, Melbourne). Mueller collected it from "low hills around the Wheal Barton mines" in January, 1851. His specimen at Melbourne is the type of Senecio helichrysoides F. Muell., Trans. & Proc. Vict. Inst. (1855) 1:39. This was reduced to S. georgianus by Benth., Fl. Aust. (1867) 3:670, although the type is much more densely tomentose than any of the other collections of Candolle's species which we have seen. Material identified as S. georgianus resembles S. cunninghamii DC. in general aspect, rather than S. quadridentatus Labill. as stated by Black (1928) Fl. S. Aust. 613. It is distinguished by leaves narrowly lanceolate (rather than linear-lanceolate), by more numerous florets (up to 40), and usually by tomentose pubescence.
Author: Not yet available
State Herbarium of South Australia