noun
any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
• Hypernyms: ↑herb, ↑herbaceous plant
• Hyponyms: ↑Grindelia robusta, ↑curlycup gumweed, ↑Grindelia squarrosa
• Member Holonyms: ↑Grindelia, ↑genus Grindelia
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\\ˈ ̷ ̷ˌ ̷ ̷\ noun : a plant of the genus Grindelia (especially G. squarrosa and G. robusta)
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/gum"weed'/, n.
any of various New World composite plants of the genus Grindelia, having yellow flower heads and covered with a viscid secretion. Also called gum plant.
[GUM1 + WEED1]
Useful english dictionary. 2012.