Noun
- 1. rosinweed, Silphium laciniatum, compass plant, compass flower
- usage: North American perennial having a resinous odor and yellow flowers
- 2. gumweed, gum plant, tarweed, rosinweed, herb, herbaceous plant
- usage: any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
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