Checklist » Asteraceae » Senecio triangularis
Last updated 12/2/2008 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:

var. triangularis [HC, HC2]
Synonyms & Misapplied Names:
Senecio triangularis Hook. var. angustifolius G.N. Jones[HC]