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gum plant(ˈɡʌmˌwiːd) or
(Plants) any of several American yellow-flowered plants of the genus Grindelia, esp G. robusta, that have sticky flower heads: family Asteraceae (composites)
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|Noun||1.||gum plant - any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock|
Grindelia robusta - perennial gumweed of California and Baja California