North America Native Plant

Wallowa Indian Paintbrush

Botanical name: Castilleja wallowensis

USDA symbol: CAWA4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Wallowa Indian Paintbrush: A Rare Mountain Gem Worth Protecting If you’re passionate about native plants and live in the Pacific Northwest, you might have heard whispers about the elusive Wallowa Indian paintbrush. This stunning wildflower isn’t just another pretty face in the crowd—it’s a rare treasure that deserves our attention ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: 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) ⚘ 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 ⚘

Wallowa Indian Paintbrush: A Rare Mountain Gem Worth Protecting

If you’re passionate about native plants and live in the Pacific Northwest, you might have heard whispers about the elusive Wallowa Indian paintbrush. This stunning wildflower isn’t just another pretty face in the crowd—it’s a rare treasure that deserves our attention and respect.

What Makes This Plant Special?

Castilleja wallowensis, commonly known as Wallowa Indian paintbrush, is a perennial forb that calls the rugged Wallowa Mountains of northeastern Oregon home. Unlike its more widespread cousins, this particular Indian paintbrush is a true homebody, found nowhere else on Earth. That’s right—this little beauty is what botanists call an endemic species, meaning it evolved in this one special place and stayed put.

Where You’ll Find It Growing Wild

This rare wildflower grows exclusively in Oregon, specifically in the Wallowa Mountains region. It has adapted to the unique conditions of this mountainous terrain, making it a living symbol of the area’s natural heritage.

A Word of Caution: Rarity Matters

Before we dive into the how-to of growing this plant, let’s talk about the elephant in the room. Wallowa Indian paintbrush has a conservation status of S2S3, which means it’s considered rare to uncommon in its native range. This isn’t a plant you can casually pick up at your local nursery, nor should you ever collect it from the wild.

If you’re determined to grow this species, please ensure you source seeds or plants only from reputable native plant societies or conservation organizations that practice responsible collection and propagation methods.

Why Gardeners Fall in Love

Like other Indian paintbrush species, this plant produces those iconic tubular flowers in brilliant shades of red and orange that seem to set the mountainside ablaze. The flowers typically appear in summer, creating a spectacular display that attracts hummingbirds and native pollinators from miles around.

As a perennial forb, it lacks woody stems but returns year after year, slowly building small colonies in the right conditions. The plant’s herbaceous nature means it dies back in winter and emerges fresh each spring.

Garden Design and Landscape Role

If you’re lucky enough to obtain responsibly sourced Wallowa Indian paintbrush, it would be perfect for:

  • Native plant gardens celebrating Pacific Northwest flora
  • Rock gardens that mimic alpine conditions
  • Mountain-themed landscapes
  • Conservation gardens focused on rare species
  • Pollinator gardens designed for hummingbirds

Growing Conditions and Care

Let’s be honest—growing any Indian paintbrush can be tricky, and rare endemic species like this one are especially challenging. Here’s what this mountain dweller needs:

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soils that mimic its native mountain habitat
  • Hardiness: Likely hardy in USDA zones 4-7, based on its mountain origins
  • Special requirements: As a member of the Indian paintbrush family, this plant may be hemiparasitic, meaning it might need to form connections with nearby host plants to thrive

The Challenge of Cultivation

Here’s where things get real: Indian paintbrush species are notoriously difficult to transplant and establish in cultivation. Many are partially parasitic, drawing nutrients from the roots of nearby grasses and other plants. This complex relationship makes them challenging to grow outside their natural habitat.

Your best bet for success would be starting from seed and allowing the plant to establish its own root connections naturally. Even then, success isn’t guaranteed, which is part of what makes encountering these plants in the wild so special.

Conservation Over Cultivation

Given its rarity and the challenges of cultivation, perhaps the best way to appreciate Wallowa Indian paintbrush is to support conservation efforts in its native habitat. Consider donating to organizations working to protect the Wallowa Mountains ecosystem or participating in citizen science projects that monitor rare plant populations.

If you do decide to attempt growing this species, remember that you’re becoming a steward of a rare piece of Oregon’s natural heritage. Source responsibly, grow carefully, and share your knowledge with other conservation-minded gardeners.

The Bottom Line

Wallowa Indian paintbrush represents something precious in our increasingly homogenized world—a plant that exists nowhere else, shaped by the unique conditions of one special place. While it may not be the easiest addition to your garden, it offers something more valuable: a connection to the wild heart of the Pacific Northwest and a chance to participate in preserving biodiversity for future generations.

Wallowa Indian Paintbrush

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

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Castilleja Mutis ex L. f. - Indian paintbrush

Species

Castilleja wallowensis Pennell - Wallowa Indian paintbrush

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