gum·weed

(gŭm′wēd′)

Any of various plants of the genus Grindelia in the composite family, native to the Americas, having yellow, rayed flower heads and sticky leaves, stems, and bracts. Also called gum plant.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

gumweed - any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock

gum plant, rosinweed, tarweed

genus Grindelia, Grindelia - large genus of coarse gummy herbs of western North and Central America

Grindelia robusta - perennial gumweed of California and Baja California

curlycup gumweed, Grindelia squarrosa - perennial gumweed of western and central North America

herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

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References in periodicals archive

GLENN MILLER IS LEADING THE effort in a project at the University of Nevada, Reno, to convert roadside gumweed into biofuel, which could help contribute to fuel supplies for the military.

Weed? Or jet fuel? Roadside gumweed in Nevada could be used as jet fuel for the military

Plant guide for great valley gumweed (Grindelia camporum).

Seed collection and germination strategies for common wetland and coastal sage scrub species in Southern California

This region consisted of relatively open ground with small patches of the tall grass Leymus mollis (Dune Grass) along the beach margin alternating with areas of short grass, herbs, and small shrubs such as Ambrosia chamissonis (Silver Burweed) and Grindelia integrifolia (Gumweed) (Cowles and Hayward 2008).

Negative interspecies interactions in a glaucous-winged gull colony on Protection Island, Washington

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