1. North American perennial having a resinous odour and yellow flowers
   - Silphium laciniatum 
2. Any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock
   - gumweed, gum plant, tarweed

Derived forms: rosinweeds

Type of: compass flower, compass plant, herb, herbaceous plant

Part of: genus Grindelia, genus Silphium, Grindelia, Silphium

Encyclopedia: Rosinweed

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