Slippery Elm

Identity

Common Name

Slippery Elm

Scientific Name

Ulmus rubra

Botanical Family

Ulmaceae

Native Region

Eastern and central North America

Cultivation Regions

Eastern and central North America

Plant Parts Used

Inner bark

Synonyms

Red Elm, Indian Elm, Moose Elm

Caffeine Level

Caffeine Free

A medium deciduous tree with large rough oval toothed leaves, small flat seed clusters, and a reddish-brown inner bark rich in soothing mucilage; the inner bark is the part used.

Historical Background

Slippery elm has been a soothing remedy of Native American and early American medicine for centuries, its inner bark chewed or brewed for a gentle, mucilaginous gruel for throats and digestion. Listed in the US Pharmacopeia, it remains a beloved comforting herb — though wild trees are endangered, so cultivated bark is preferred.

Earliest recorded uses: Native American traditions for centuries; adopted into early American medicine and listed in the US Pharmacopeia.

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Flavor & Aroma

Aroma: Mild, earthy, slightly sweet, mucilaginous

Tea Information

Research Summary

Slippery elm has a long tradition as a soothing throat and digestive herb. Clinical evidence is insufficient; its mucilage offers demulcent comfort, but it is not a treatment for GERD, IBD, sore throat, or any disease, and may slow medication absorption.

Evidence levels reflect the currently available scientific literature and may change as new research emerges. Where evidence is limited or conflicting, this is stated plainly.

References & Sources