Checklist » Asteraceae » Pleiacanthus spinosus
Pleiacanthus spinosus (Nutt.) Rydb.[FNA19, HC2]
thorny skeletonweed

Publication: Fl. Rocky Mts. 1069. 1917.

Origin: Introduced

Herbarium search: CPNWH

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.

Last updated 11/1/2020 by David Giblin.


Photo © 2018 Gerald D. Carr
(from WTU Image Collection)
Synonyms & Misapplied Names:
Lygodesmia spinosa Nutt.[HC]
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