Yerba Santa
Image: lillybyrd (cc-by-nc)
NameYerba Santa
Scientific NameEriodictyon californicum (Hook. & Arn.) Greene
Common NamesYerba Santa, Mountain Balm, Consumptive's Weed, Holy Herb
Plant FamilyBoraginaceae
Natural HabitatNative to chaparral, dry slopes, and open woodlands in California and Oregon, often found in disturbed areas or after fires. It thrives in well-drained, rocky or sandy soils.
Parts Usedleaf
Medicinal Actionsexpectorant,anti-inflammatory,antimicrobial,antioxidant
Traditional UsesTraditionally used by Native American tribes and later by Spanish settlers for respiratory conditions such as colds, coughs, asthma, bronchitis, and sore throats. It was also used for fevers, stomach problems, and as a blood purifier. The resinous leaves were chewed or made into teas.
Active ConstituentsFlavonoids (e.g., eriodictyol, homoeriodictyol, sterubin), volatile oils, resins, phenolic acids
Preparation Methodsinfusion,decoction,tincture,powder,salve
Contraindications & WarningsGenerally considered safe, but large doses may cause stomach upset. Pregnant or breastfeeding women should consult a healthcare professional. May interact with some medications due to its flavonoid content.
Cultivation NotesPrefers full sun to partial shade, well-drained soil, and is drought-tolerant once established. It is hardy in USDA zones 7-10 and can be propagated by seed or cuttings.
Raritycommon
Description
Yerba Santa is an evergreen shrub native to California and Oregon, characterized by its leathery, lance-shaped leaves that are dark green and resinous on the upper surface, and often whitish-tomentose underneath. It produces clusters of small, bell-shaped flowers, typically white to lavender.
