American burnweed

American burnweed (Erechtites hieracifolia). Photo: Ria Malloy

Updated: May 11, 2022

Life cycle

American burnweed (Erechtites hieracifolia) is a native summer annual plant. It is also called fireweed or pilewort.

Growth habit

Height may range from 1 1/2 - 10 feet, alternate leaves with toothed margins, feathery white seedheads are a key identifying feature

Reproduction

Reproduces by seed that is wind dispersed

Conditions that favor growth

Pastures, open fields and can show up in home landscapes

Photos

Young plant

American burnweed

Photo: James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org

Whole plant

American burnweed in its natural habitat

Photo: Robert Vidéki, Doronicum Kft., Bugwood.org

Foliage

American burnweed leaves and stem

Photo: Joseph M. DiTomaso, University of California - Davis, Bugwood.org

Flowers

American burnweed flowers

Photo: Robert Vidéki, Doronicum Kft., Bugwood.org

Management

Identify plant, monitor early, manual removal before seeds form. Can be dug out or manually pulled. 

 

Still have a question? Contact us at Ask Extension.