North America Native Plant

Bluewater Fleabane

Botanical name: Erigeron acomanus

USDA symbol: ERAC7

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Bluewater Fleabane: A Rare New Mexican Native Worth Protecting If you’re a native plant enthusiast with a passion for rare treasures, you may have stumbled across the name bluewater fleabane (Erigeron acomanus). This perennial forb represents one of those botanical gems that makes New Mexico’s flora so special—but it’s also ...

Rare plant alert!

Region: Conservation status by state

Status: S1S2: Status is uncertain but is somewhere between the following rankings: 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) ⚘

Bluewater Fleabane: A Rare New Mexican Native Worth Protecting

If you’re a native plant enthusiast with a passion for rare treasures, you may have stumbled across the name bluewater fleabane (Erigeron acomanus). This perennial forb represents one of those botanical gems that makes New Mexico’s flora so special—but it’s also a plant that comes with some serious conservation considerations.

What Makes Bluewater Fleabane Special?

Bluewater fleabane is a native perennial forb that belongs to the vast Erigeron genus, commonly known as fleabanes. As a forb, it’s an herbaceous plant without woody stems, relying on underground structures to survive from year to year. Like its fleabane relatives, it likely produces the characteristic daisy-like flowers that make this plant family so beloved by gardeners and pollinators alike.

Where Does It Call Home?

This fleabane is a true New Mexican endemic, meaning it’s found nowhere else in the world except within the borders of the Land of Enchantment. Its limited geographic distribution makes it a special representative of New Mexico’s unique high desert flora.

A Word of Caution: Rarity Matters

Here’s where things get serious, fellow gardeners. Bluewater fleabane carries a Global Conservation Status of S1S2, which indicates it’s considered rare and potentially vulnerable. This means that while you might be tempted to seek out this botanical unicorn for your native garden, you need to proceed with extreme caution.

If you’re determined to grow this species, please ensure that any plants or seeds come from:

  • Reputable native plant nurseries with documented propagation programs
  • Conservation organizations with proper permits
  • Never from wild-collected sources

Growing Conditions and Care

Unfortunately, specific growing requirements for bluewater fleabane aren’t well-documented in horticultural literature—a common challenge with rare native species. However, given its New Mexican origins, it likely thrives in:

  • Well-draining soils typical of high desert environments
  • Full sun to partial shade conditions
  • Low to moderate water requirements once established
  • Rocky or sandy soil conditions

Consider These Alternatives

Given the conservation concerns surrounding bluewater fleabane, you might want to consider other New Mexican native fleabanes that are more readily available and less threatened. Species like spreading fleabane (Erigeron divergens) or Santa Barbara daisy (Erigeron karvinskianus) can provide similar aesthetic appeal without the ethical complications.

The Bottom Line

Bluewater fleabane represents the kind of rare botanical treasure that makes native plant gardening so fascinating. However, its rarity status means it’s better appreciated in its natural habitat or in the hands of serious conservation-minded gardeners with access to responsibly sourced material. Sometimes the best way to love a rare plant is to admire it from afar and support conservation efforts that protect its wild populations.

If you do manage to grow this special fleabane, consider yourself a steward of New Mexico’s botanical heritage—and maybe share seeds with other conservation-minded gardeners to help ensure this rare beauty has a future in cultivation as well as in the wild.

Bluewater Fleabane

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

Erigeron L. - fleabane

Species

Erigeron acomanus Spellenb. & P. Knight - bluewater fleabane

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