Grindelia
NameGrindelia
Scientific NameGrindelia robusta
Common NamesGumweed, Gum Plant, Rosinweed, Tarweed
Plant FamilyAsteraceae
Natural HabitatNative to western North America, particularly California, thriving in dry, open, disturbed areas, grasslands, roadsides, and coastal regions, often in heavy or alkaline soils.
Parts Usedflower,leaf
Medicinal Actionsexpectorant,anti-inflammatory,antimicrobial,demulcent
Traditional UsesTraditionally used for respiratory conditions such as asthma, bronchitis, whooping cough, and other coughs, due to its expectorant and antispasmodic properties that help loosen phlegm and soothe irritated mucous membranes. It has also been applied topically for skin irritations like poison ivy.
Active ConstituentsGrindelic acid, diterpenes, flavonoids, saponins, volatile oils, resins
Preparation Methodsinfusion,tincture,poultice,salve
Contraindications & WarningsAvoid use in individuals with kidney inflammation or severe kidney disease. Large doses may cause gastrointestinal upset. Not recommended during pregnancy or breastfeeding without professional advice.
Cultivation NotesPrefers full sun and well-drained soil, tolerating poor and alkaline conditions. It is drought-tolerant once established and can be propagated by seed.
Raritycommon
Description
Grindelia robusta is a perennial herb characterized by its bright yellow, daisy-like flower heads and sticky, resinous involucral bracts. The leaves are typically sessile, clasping the stem, and can be toothed or entire, often covered in a gummy exudate.
