August 28, 2020 Grindelia stricta var. angustifolia Marsh Gumplant Marsh gumplant (Grindelia stricta var. angustifolia).Marsh gumplant (Grindelia stricta) blooming at Hayward Regional Shoreline in September. Illustration by Janet Gawthrop.Marsh gumplant (Grindelia stricta var. angustifolia). Where to see itPlant Visits on the East Bay Shoreline
