Entire-leaved gumweed is a native flowering perennial that is found along the west coast of North America. The plant has smooth, lance-shaped leaves and bright yellow flowers. The name “gumweed” comes from the white, sticky gum which covers the flower buds before they open.


Entire-leaved gumweed is mainly found in wetland and coastal areas, but can also be found in disturbed habitats like roadsides. The flowers bloom late in the summer, and are a very important late-season food source for many pollinator species, including bees, wasps, flies, butterflies, and moths. The seeds also provide food for songbirds. Entire-leaved gumweed also has several medicinal uses, including the treatment of asthma and bronchitis.