Description

Grindelia stricta is a species of flowering plant in the Asteraceae (Sunflower) family known by the common names Coastal Gumweed and Oregon Gumweed. It is native to the west coast of North America from California to Alaska, where it is a resident of coastal plant communities such as those in marshes and beaches. In California, it is found from the Channel Islands northwards, typically in close proximity to the coast. This plant is variable in appearance, taking the form of a weed-like perennial herb forming low clumps to a sprawling subshrub growing erect to heights exceeding one meter. Its foliage and stems are green to rusty red or purplish and the plant may be hairy to hairless. The fleshy leaves are green, often with red edges and veining, and are up to 5" in length on large plants. The flower cluster holds one or more flower heads each up to 1" wide. The flower head is a cup of thick erect or recurved green phyllaries. Yellow disc florets fill the center of the flower head and there is a fringe of yellow ray florets around the circumference. The head produces copious white exudate, especially in the early stages of blooming. This exudate was used by native people as an adhesive. It does best in full or part sun in coastal areas with well draining, sandy soil. Does tolerate saline soil. Flowers attract butterflies. Deadhead to promote more blooms during spring, summer and fall. Can be 3-5' tall and 7' wide.