North America Native Plant

Penland’s Beardtongue

Botanical name: Penstemon penlandii

USDA symbol: PEPE25

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Penland’s Beardtongue: A Rare Colorado Treasure for Specialized Gardens Meet Penland’s beardtongue (Penstemon penlandii), one of Colorado’s most exclusive native wildflowers. This isn’t your average garden center find – it’s a botanical VIP that calls some pretty unusual real estate home. If you’re drawn to rare plants with fascinating stories, ...

Rare plant alert!

Region: United States

Status: S1: 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) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Penland’s Beardtongue: A Rare Colorado Treasure for Specialized Gardens

Meet Penland’s beardtongue (Penstemon penlandii), one of Colorado’s most exclusive native wildflowers. This isn’t your average garden center find – it’s a botanical VIP that calls some pretty unusual real estate home. If you’re drawn to rare plants with fascinating stories, this little gem might just capture your imagination.

What Makes Penland’s Beardtongue Special?

Penland’s beardtongue is a perennial herb that belongs to the snapdragon family, producing charming tubular flowers in shades of purple-blue. Like other penstemons, it’s perfectly designed to attract native pollinators with its trumpet-shaped blooms that appear in late spring to early summer. But what really sets this plant apart isn’t just its beauty – it’s its incredible rarity and unique habitat preferences.

Where Does It Call Home?

This Colorado endemic is found exclusively in the Piceance Basin region of western Colorado, where it has adapted to thrive in oil shale soils. Yes, you read that right – oil shale! While most plants would struggle in such challenging conditions, Penland’s beardtongue has made these alkaline, nutrient-poor substrates its specialty.

A Word of Caution: Rarity Status

Important: Penland’s beardtongue is critically imperiled with a Global Conservation Status of S1 and is listed as Endangered in the United States. This means there are typically fewer than 1,000 individuals remaining in the wild, with only five or fewer known populations.

If you’re considering adding this plant to your collection, please ensure you source it only from reputable native plant nurseries that propagate it ethically. Never collect from wild populations, as this could further threaten this rare species.

Growing Penland’s Beardtongue: Not for Beginners

Let’s be honest – this isn’t a plant for casual gardeners. Penland’s beardtongue has very specific needs that mirror its natural habitat:

  • Extremely well-draining, alkaline soils
  • Full sun exposure
  • Minimal water requirements once established
  • Rocky or gravelly soil conditions
  • USDA hardiness zones 4-7

Garden Design and Landscape Role

If you can provide the right conditions, Penland’s beardtongue works beautifully in:

  • Specialized rock gardens
  • Native plant conservation collections
  • Xeriscaping projects
  • Educational demonstration gardens

Its compact size and unique growing requirements make it more of a collector’s plant than a landscape workhorse, but that’s part of its charm for dedicated native plant enthusiasts.

Benefits to Wildlife

Despite its rarity, Penland’s beardtongue plays an important ecological role. Its tubular flowers are perfectly suited for native bees and other small pollinators. By growing this plant responsibly, you’re not just adding a conversation piece to your garden – you’re contributing to conservation efforts for both the plant and its pollinator partners.

The Bottom Line

Penland’s beardtongue isn’t for everyone, and that’s okay. It requires specialized growing conditions, responsible sourcing, and a commitment to conservation. But for serious native plant gardeners interested in rare species conservation, it offers a unique opportunity to grow something truly special while supporting biodiversity.

If you’re new to native gardening or looking for easier alternatives, consider other Colorado native penstemons like Rocky Mountain penstemon (Penstemon strictus) or firecracker penstemon (Penstemon eatonii), which offer similar pollinator benefits with less demanding growing requirements.

Remember: growing rare plants is a privilege that comes with responsibility. Choose wisely, source ethically, and help ensure future generations can appreciate these botanical treasures.

Penland’s Beardtongue

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

Penstemon Schmidel - beardtongue

Species

Penstemon penlandii W.A. Weber - Penland's beardtongue

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