Grindelia squarrosa


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Related to Grindelia squarrosa: Grindelia robusta
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Noun1.Grindelia squarrosa - perennial gumweed of western and central North AmericaGrindelia squarrosa - perennial gumweed of western and central North America
gum plant, gumweed, rosinweed, tarweed - any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
References in periodicals archive ?
ex Pursh Grindelia squarrosa N 0 0 0.08 (Pursh) Dunal Lactuca pulchella N 0 0.04 0 (Pursh) DC.
X Gnaphalium stramineum Kunth X Grindelia squarrosa (Pursh) Dunal 17 var.
Presl Onagraceae (1%) Erythronium grandijlorum Pursh Liliaceae * Grindelia squarrosa (Pursh) Dunal Asteraceae (1%) Isatis tinctoria L.