North America Native Plant

American Burnweed

Botanical name: Erechtites hieraciifolius var. megalocarpus

USDA symbol: ERHIM2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Erechtites hieraciifolia (L.) Raf. ex DC. var. megalocarpa (Fernald) Cronquist, orth. var. (ERHIM)  âš˜  Erechtites megalocarpa Fernald, orth. var. (ERME12)  âš˜  Erechtites megalocarpus Fernald (ERME3)   

American Burnweed: A Rare Native Wildflower Worth Protecting If you’re passionate about native plants and supporting local ecosystems, you might want to learn about American burnweed (Erechtites hieraciifolius var. megalocarpus). This unassuming annual wildflower is more special than its modest appearance might suggest—it’s actually quite rare in parts of its ...

Rare plant alert!

Region: New Jersey

Status: S5T3: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘ New Jersey Highlands region ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Region: New Jersey

American Burnweed: A Rare Native Wildflower Worth Protecting

If you’re passionate about native plants and supporting local ecosystems, you might want to learn about American burnweed (Erechtites hieraciifolius var. megalocarpus). This unassuming annual wildflower is more special than its modest appearance might suggest—it’s actually quite rare in parts of its range and plays an important role in northeastern ecosystems.

What Is American Burnweed?

American burnweed is a native annual forb, meaning it’s an herbaceous plant that completes its entire life cycle in one growing season. Unlike woody plants, this species lacks significant woody tissue and produces fresh growth from the ground each year. As a member of the aster family, it produces small clusters of inconspicuous flowers that might not win any beauty contests but serve important ecological functions.

Where Does It Grow Naturally?

This variety of American burnweed has a limited native range in the northeastern United States. You can find it naturally growing in Connecticut, Massachusetts, New Jersey, New York, and Rhode Island. It’s adapted to the specific growing conditions found in this region and has evolved alongside local wildlife species.

Important Conservation Considerations

Here’s something crucial to know before you consider adding American burnweed to your garden: this plant is quite rare. It has a global conservation status that indicates concern for its long-term survival, and in New Jersey specifically, it’s listed as S1S2, meaning it’s critically imperiled to imperiled in the state.

If you’re interested in growing this species, please only obtain seeds or plants from responsible, ethical sources that don’t impact wild populations. Never collect from the wild, and consider supporting conservation efforts for this and other rare native plants instead.

Growing American Burnweed: What You Need to Know

Should you manage to source American burnweed responsibly, here’s what you can expect:

Ideal Growing Conditions

  • Partial shade to full sun exposure
  • Moist, well-draining soil
  • Tolerates disturbed soils and woodland edges
  • Hardy in USDA zones 4-7

Garden Design Role

American burnweed isn’t a showstopper in the traditional sense, but it serves valuable purposes in naturalized gardens and restoration projects. It’s best suited for:

  • Woodland edge plantings
  • Native plant restoration areas
  • Naturalized wildflower meadows
  • Areas where you want to support local wildlife

Care and Maintenance

As an annual, American burnweed will complete its life cycle in one season, but it can self-seed under the right conditions. This makes it relatively low-maintenance once established. Simply provide adequate moisture during dry spells and allow it space to naturalize.

Wildlife and Ecological Benefits

While the flowers may appear modest to human eyes, they attract small pollinators and beneficial insects. As a native species, American burnweed has co-evolved with local wildlife and provides resources that non-native plants simply can’t match. Supporting rare natives like this one helps maintain the intricate web of relationships that keep ecosystems healthy.

The Bottom Line

American burnweed represents the kind of plant that reminds us why native species conservation matters. While it may not have the flashy appeal of hybrid garden varieties, it offers something far more valuable: a connection to the natural heritage of the northeastern United States and support for the creatures that call this region home.

If you’re drawn to growing this rare native, please do so responsibly and consider it an opportunity to participate in conservation efforts. Every garden that supports rare native plants becomes a small sanctuary contributing to biodiversity preservation.

American Burnweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Erechtites Raf. - burnweed

Species

Erechtites hieraciifolius (L.) Raf. ex DC. - American burnweed

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA