A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium, Burke Museum
Hosted by the University of Washington Herbarium, Burke Museum
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Asteraceae » Senecio triangularis
Last updated 11/16/2020 by David Giblin.
Senecio triangularis Hook.[FNA20, HC, HC2]
arrowleaf groundsel, arrowleaf ragwort
Publication: Fl. Bor.-Amer. 1: 332, plate 115. 1834.
Origin: Native
selected vouchers: WTU
Notes: FNA20: "Plants of Senecio triangularis with narrow, subentire leaves that taper to the petioles are occasionally encountered in acid bogs in Oregon and Washington and less frequently elsewhere. They are regarded as edaphic variants; they have been recognized as var. angustifolius."
Var. angustifolius of southern OR & CA is distinct (Chambers and Sundberg, 2000).
References: (none)
Infraspecies:
Synonyms & Misapplied Names:
Senecio triangularis Hook. var. angustifolius G.N. Jones[HC]
