rosinweed

Noun rosinweed has 2 senses

• rosinweed(n = noun.plant) silphium laciniatum - North American perennial having a resinous odor and yellow flowers;
is a kind of compass flower, compass plant
is a member of genus silphium, silphium

• rosinweed(n = noun.plant) gum plant, gumweed, tarweed - any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock;
is a member of genus grindelia, grindelia
has particulars: grindelia robusta, curlycup gumweed, grindelia squarrosa
is a kind of herb, herbaceous plant