ros·in·weed /ˈrɑzṇˌwid, ˈrɔ-/
松香草
Ros·in·weed n. Bot. (a) The compass plant. See under Compass. (b) A name given in California to various composite plants which secrete resins or have a resinous smell.
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rosinweed
n 1: North American perennial having a resinous odor and yellow
flowers [syn: 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 [syn: gumweed,
gum plant, tarweed]