Fireweed

Fireweed is a tall perennial with narrow leaves and a striking column of pink to purple flowers. It is particularly familiar in the Pacific Northwest, where it grows along forest openings, mountain roads and disturbed ground. Its name comes from its ability to establish rapidly after wildfires, though it also thrives in meadows, riverbanks and other sunny places.

A plant of recovering landscapes

Fireweed is an important early-successional plant, among the first herbs to occupy sites opened by fire, logging or other disturbance. Its numerous seeds travel on silky hairs carried by the wind, while underground rhizomes allow established plants to spread and return after their aboveground stems have been damaged.

Its flowers provide nectar for bees and other insects during summer. As shrubs and trees gradually return, fireweed often becomes less abundant beneath the developing canopy. The plant offers a particularly visible example of how vegetation changes through ecological succession.[1, 2]

Food, fiber and herbal traditions

Fireweed has a long history of practical use. Ethnobotanical accounts from the Pacific Northwest describe young shoots and stems eaten by several Indigenous peoples, while fibers from mature stems were used for cordage and fishing nets. The soft seed hairs also served as material for weaving and padding.[1]

The leaves have been prepared as tea in Europe and Russia, where fermented or processed fireweed tea is often known as Ivan chai or Koporye tea.

In herbal traditions, fireweed is described as astringent, a quality associated with tannin-rich preparations that have a tightening effect on tissues. North American ethnobotanical records describe leaf preparations for digestive complaints and topical applications of the plant to irritated skin. Roasted roots and other plant parts also appear in traditional poultices.[1]

Polyphenols and astringency

Fireweed contains ellagitannins, a group of complex polyphenols that contribute to its astringent character. One particularly studied constituent is oenothein B, a large tannin molecule found in the leaves and flowers.

The plant also contains flavonoids, including derivatives of quercetin and kaempferol, along with other phenolic compounds. Researchers have investigated extracts of fireweed for antioxidant activity and their interactions with inflammation-related biological processes.[3]

These constituents help explain why fireweed has attracted interest in herbalism as well as contemporary botanical research.

At Deschampsia

We gather fireweed in the Cascade Mountains during summer flowering. The fresh herb is one of the plants we co-distill with farm-grown cucumber and peppermint for Cooling Cucumber Mint & Fireweed Hydrosol. In this preparation, fireweed contributes to the soft green, fresh-plant character of the finished aromatic water.

We also use fireweed in botanical oil infusions for Rescue Balm and Botanical Lip Butter.

Related Library entry: Hydrosols

Photograph: USDA Forest Service Alaska Region · CC BY 2.0 license.