Grindelia aggregata is a rare North American species of flowering plants in the family Asteraceae. It is native to western Canada, found only in salt marshes and tidal flats along the seacoast in the southern part of Vancouver Island in British Columbia.
Grindelia aggregata is a branching herb up to tall. Leaves are thick and leathery, up to long, with no hairs on the faces of the leaf but a few along the edges. Flower heads are about across, each containing 23-33 yellow ray flowers surrounding numerous small disc flowers.Steyermark, Julian Alfred. 1934. Annals of the Missouri Botanical Garden 21(3): 566-567 diagnosis in Latin, description and commentary in English, line drawing on page 565 (figure 30 at right)
References
External links photo of herbarium specimen at Missouri Botanical Garden, collected in British Columbia in 1903, holotype of Grindelia aggregata