Grindelia squarrosa

Family Aster (Asteraceae)
Bloom Summer, fall
Habitat Meadows, fields, roadsides
Status Native
Cycle Perennial
Height 0.5-3′
Flower Up to 20 yellow flower heads form a ray flower about 1″ wide with outward curling green bracts. They exude a sticky gum-like resin.
Leaf Oval simple leaves 1-2″ long often wavy or curled edges and coarse teeth, usually without a leafstalk.
Notes Gumweed originated in the American West and has expanded its range into our area. It is one of the first plants to grow after construction or in a heavily grazed field or pasture.


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