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 » Pleiacanthus spinosus
Last updated 11/1/2020 by David Giblin.
Pleiacanthus spinosus (Nutt.) Rydb.[FNA19, HC2]
thorny skeletonweed
Publication: Fl. Rocky Mts. 1069. 1917.
Origin: Introduced
selected vouchers: WTU
Notes: Collected once (2009) in Yakima County. Uncertain as to whether a relictual native stand or an introduction. Closest populations are in central Oregon and southern Idaho.
References: (none)
Synonyms & Misapplied Names:
Lygodesmia spinosa Nutt.[HC]
