Sonchus asper (L.) Hill

En: prickly sowthistle, spiny sowthistle, spinyleaf sowthistle
Fr: laiteron rude, laiteron épineux
Provincial Status: Ni
Range: Eurasia; intr. in w/c/eNfld.

[=Sonchus oleraceus L. var. asper L. (basionym)]
[=Sonchus glaber Thunb.]
[=Sonchus asper (L.) Hill var. inermis Bisch.]
[=Sonchus asper (L.) Hill var. pungens Bisch.]
[=Sonchus carolinianus Walter]
[=Sonchus fallax Wallr.]
[=Sonchus oleraceus L. subsp. asper (L.) Ehrh.]
[=Sonchus oleraceus L. var. laevis L.]
[=Sonchus spinulosus Bigelow]
[=Sonchus umbellatus E.Mey. ex DC.]
[=Sonchus viridis Zenari]

[A Labrador report of Sonchus asper was made by J.M. Gillett and W. Findlay (DAO) in 1950 from Goose Bay, cLab., but no recent reports of this species from Labrador have been found; thus, Sonchus asper is now considered excluded from Labrador.]

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