Title: Grindelia
Additional Names: Gum-plant (of California)
Literature References: Dried leaves and flowering tops of Grindelia camporum Greene or of G. humilis H. & A. (G. cuneifolia Auth.), Compositae. Habit. North America (California). Constit. Volatile oil, over 20% resin, grindelol, saponin, tannin, robustic acid.
Therap-Cat: Expectorant.
Grindelic Acid Grisein Griseoviridin Guaiac-Copper Sulfate Paper Guaiacol

Puget Sound Gumweed (Grindelia integrifolia)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Grindelia

Approximately 28

Grindelia is a genus of plants native to the Americas belonging to the family Asteraceae, (Compositae). G. squarrosa, a plant with bright yellow flowers indigenous to much of the United States, is commonly called curlycup gumweed. G. robusta, found in the western states, is a coastal scrub bush that is reputed to have several medicinal uses. Hairy gumweed, Grindelia cuneifolia, occurs in brackish coastal marshes of western North America, such as in some portions of the San Francisco Bay perimeter.

Grindelia species are used as food plants by the larvae of some Lepidoptera species including Schinia mortua.

Selected species:

  • Grindelia buphthalmoides
  • Grindelia camporum
  • Grindelia chiloensis
  • Grindelia ciliata - goldenweed
  • Grindelia fraxino-pratensis - Ash Meadows gumplant
  • Grindelia hirsutula
  • Grindelia integrifolia - Puget Sound gumweed
  • Grindelia lanceolata - Narrowleaf gumweed
  • Grindelia nana - Idaho gumplant
  • Grindelia nuda - Curly gumweed
  • Grindelia squarrosa
  • Grindelia stricta - Oregon gumweed