North America Native Plant

Fanleaf Fleabane

Botanical name: Erigeron flabellifolius

USDA symbol: ERFL8

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Fanleaf Fleabane: A Rare Mountain Treasure Worth Protecting If you’re drawn to rare wildflowers and have a passion for conservation gardening, fanleaf fleabane (Erigeron flabellifolius) might just capture your heart. This uncommon perennial fleabane is one of those special plants that makes you feel like you’re part of something bigger—helping ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: 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 ⚘

Fanleaf Fleabane: A Rare Mountain Treasure Worth Protecting

If you’re drawn to rare wildflowers and have a passion for conservation gardening, fanleaf fleabane (Erigeron flabellifolius) might just capture your heart. This uncommon perennial fleabane is one of those special plants that makes you feel like you’re part of something bigger—helping preserve a piece of our natural heritage right in your own backyard.

What Makes Fanleaf Fleabane Special?

Fanleaf fleabane is a native herbaceous perennial that belongs to the vast fleabane family. As its name suggests, this plant features distinctive fan-shaped leaves that set it apart from its more common cousins. Like other fleabanes, it produces cheerful daisy-like flowers that add a wild, natural beauty to any garden setting.

What truly makes this plant remarkable isn’t just its appearance—it’s its rarity. With a Global Conservation Status of S3 (Vulnerable), fanleaf fleabane has only 21 to 100 known occurrences worldwide, with an estimated population of just 3,000 to 10,000 individuals. That makes every single plant incredibly precious.

Where Does Fanleaf Fleabane Call Home?

This mountain dweller is native to the western United States, specifically calling Montana and Wyoming home. Its limited geographic distribution contributes to its vulnerable status and makes it a true regional specialty.

Should You Grow Fanleaf Fleabane?

Here’s where things get both exciting and serious. If you live within or near its native range and have the right growing conditions, cultivating fanleaf fleabane can be a meaningful way to participate in plant conservation. However, there’s an important caveat: only grow this plant if you can source it responsibly.

Never collect seeds or plants from wild populations—this could harm already vulnerable populations. Instead, look for:

  • Seeds or plants from reputable native plant societies
  • Material from established conservation programs
  • Plants grown from ethically collected seeds with proper permits

Growing Conditions and Care

While specific cultivation information for fanleaf fleabane is limited due to its rarity, we can make educated assumptions based on its native habitat and related species:

Climate: As a Montana and Wyoming native, this plant likely thrives in cooler climates with significant temperature variations between seasons.

Soil: Mountain fleabanes typically prefer well-draining soils, possibly with some rocky or sandy content that mimics their natural alpine or subalpine environments.

Light: Most fleabanes perform best in full sun to partial shade conditions.

Water: Like many mountain plants, it likely prefers moderate moisture with good drainage, avoiding both drought stress and waterlogged conditions.

Garden Design Ideas

If you’re fortunate enough to grow fanleaf fleabane, consider incorporating it into:

  • Native plant gardens focused on regional conservation
  • Rock gardens or alpine-style plantings
  • Wildlife gardens (fleabanes typically support various pollinators)
  • Educational or demonstration gardens highlighting rare species

The Conservation Connection

Growing rare native plants like fanleaf fleabane isn’t just about having something unique in your garden—it’s about becoming a steward of biodiversity. By maintaining genetically diverse populations outside their natural habitat, home gardeners can serve as an important backup for wild populations.

Plus, there’s something deeply satisfying about nurturing a plant that few people have ever seen, let alone grown. It connects you to the wild places of Montana and Wyoming and makes your garden a small sanctuary for botanical diversity.

A Word of Caution and Encouragement

Given fanleaf fleabane’s vulnerable status, approach growing this plant with both excitement and responsibility. If you can’t find responsibly sourced material, consider growing other native fleabanes from your region instead—they’ll provide similar ecological benefits while you wait for an ethical opportunity to grow this rare beauty.

Remember, every rare plant grown in cultivation is a small victory for conservation. By choosing to grow fanleaf fleabane responsibly, you’re not just adding to your garden—you’re helping ensure that future generations will have the chance to marvel at this remarkable mountain wildflower.

Fanleaf 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 flabellifolius Rydb. - fanleaf fleabane

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