Lomatium Root

Latin Name
Lomatium dissectum

Herb Class/Action
• Antiviral
• Expectorant
• Immune stimulant
• Antibacterial
• Anti-inflammatory
• Adaptogenic

Parts Used
• Dried root

Flavors
• Bitter
• Resinous
• Aromatic

Energetics
• Warming
• Drying

Traditional Benefits
Used by numerous Native American tribes of the Pacific Northwest, Lomatium root—also called “biscuit root”—was a primary remedy for coughs, colds, fevers, and pneumonia. It was eaten as a food-medicine during lean seasons and applied as poultices to wounds and skin infections. Its reputation as a powerful respiratory ally comes from centuries of traditional use in clearing bronchial congestion and supporting rapid resolution of viral illnesses.

A Natural Allergy Ally
Lomatium’s anti-inflammatory and expectorant properties help calm histamine-driven respiratory irritation, ease sinus pressure, and promote clear breathing during high-pollen seasons.

A Herb for Seasonal Support
Ideal in late winter and early spring—when colds, flus, and allergy symptoms peak—Lomatium supports robust immune response, soothes inflamed airways, and helps prevent secondary bacterial infections.

How It Works
Lomatium root contains potent furanocoumarins, resinous gum, and volatile oils that exhibit broad-spectrum antiviral and antimicrobial activity. These compounds stimulate mucus clearance, reduce inflammation in bronchial tissues, and enhance macrophage and lymphocyte function, supporting both innate and adaptive immunity.

Best Ways to Use It
Tinctures/Extracts: 1–2 mL of a 1:5 tincture, 2–3× daily at the first sign of infection.
Decoction: Simmer 1 tsp dried root in 1 cup water for 10 min; strain and sip warm.
Capsules: 300–500 mg, 2–3× daily for ongoing immune support.
Poultices: Crushed fresh root in a cloth bandage for skin infections or swollen glands.

Fun Fact
Early homesteaders and prospectors ground the dried root into flour to make cakes and biscuits—hence the nickname “biscuit root”—providing both sustenance and medicine during long expeditions.

A Herb for Modern Use
Today, herbalists use Lomatium root in acute viral protocols (including influenza and coronaviruses), chronic respiratory conditions, and Lyme co-infections. Its potent immune-modulating and expectorant actions make it a favored choice for those seeking a natural alternative to harsh pharmaceuticals.

Safety Considerations
Use short-term only; prolonged use may cause skin rash (photosensitivity) in sensitive individuals. Avoid in pregnancy and with known furanocoumarin sensitivities. Always start with low doses and monitor skin for rash when outdoors.