GUMWEEDS
Scrabble letter values: G2U1M3W4E1E1D2S1 = 15
Definition
GUMWEEDS is the plural of GUMWEED.
noun GUMWEED: any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally.
Synonyms of GUMWEED: gum_plant, tarweed, rosinweed