Native Plants

Cutleaf Beardtongue

Penstemon richardsonii var. dentatus

USDA symbol: PERID3

perennial subshrub

Lower 48 states: native

If you’re passionate about native plants and live in Oregon, you might have heard whispers about the cutleaf beardtongue (Penstemon richardsonii var. dentatus). This lesser-known variety of beardtongue is a true Oregon original – and that’s both exciting and concerning for native plant enthusiasts. Cutleaf beardtongue is a perennial forb ...

Cutleaf Beardtongue may be listed as rare in your area.
Global Conservation Status

Status: S4T2T3 | Apparently Secure: Uncommon but not rare, and usually widespread. Possible cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals.

Cutleaf Beardtongue: A Rare Oregon Native Worth Protecting

If you’re passionate about native plants and live in Oregon, you might have heard whispers about the cutleaf beardtongue (Penstemon richardsonii var. dentatus). This lesser-known variety of beardtongue is a true Oregon original – and that’s both exciting and concerning for native plant enthusiasts.

What Makes Cutleaf Beardtongue Special?

Cutleaf beardtongue is a perennial forb that belongs to the beloved Penstemon family. Like its cousins, this plant lacks significant woody tissue but makes up for it with persistent underground structures that help it return year after year. As a native herb, it’s perfectly adapted to Oregon’s unique growing conditions and plays an important role in local ecosystems.

A Rare Treasure in Oregon’s Landscape

Here’s where things get interesting – and a bit sobering. This plant is currently found only in Oregon, making it a true regional endemic. Its conservation status is listed as S4T2T3, which indicates it’s quite rare and potentially vulnerable.

  • Species observed
  • No observations

Important note for gardeners: If you’re considering adding cutleaf beardtongue to your garden, please ensure you source it responsibly. Never collect from wild populations, and only purchase from reputable native plant nurseries that can verify their propagation methods.

Why Grow Cutleaf Beardtongue?

Despite its rarity (or perhaps because of it), there are compelling reasons to consider this plant:

  • True native status: Supporting genuine local flora helps preserve Oregon’s botanical heritage
  • Pollinator magnet: Like other penstemons, it likely attracts hummingbirds, native bees, and butterflies
  • Low maintenance: Once established, native plants typically require less water and care
  • Conservation contribution: Growing rare natives in gardens can help preserve genetic diversity

Growing Conditions and Care

While specific growing information for this variety is limited, we can make educated guesses based on its Penstemon heritage and Oregon origins:

  • Sunlight: Likely prefers full sun to partial shade
  • Soil: Probably thrives in well-draining soils (penstemons generally dislike wet feet)
  • Water: Drought-tolerant once established, typical of many Oregon natives
  • Hardiness: Should be cold-hardy in most Oregon locations

Garden Design Ideas

Cutleaf beardtongue would be perfect for:

  • Native plant gardens showcasing Oregon’s unique flora
  • Rock gardens or naturalized areas
  • Pollinator gardens focused on supporting local wildlife
  • Conservation-minded landscapes

A Word of Caution and Hope

The rarity of cutleaf beardtongue means we need to be thoughtful stewards. If you’re lucky enough to find responsibly sourced plants or seeds, you’re not just adding beauty to your garden – you’re participating in conservation efforts. Consider connecting with local native plant societies or botanical organizations to learn more about protecting Oregon’s rare flora.

Remember, every garden can be a sanctuary. By choosing natives like cutleaf beardtongue (when sourced responsibly), we create stepping stones for wildlife and help preserve the plants that make Oregon’s landscapes so special.

Penstemon richardsonii var. dentatus is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Penstemon richardsonii var. dentatus is also known as:

Penstemon richardsonii Douglas ex ssp. dentatus | USDA symbol: PERID2

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Scrophulariales
Family: Scrophulariaceae Juss. - Figwort family
Genus: Penstemon Schmidel - beardtongue

Species: Penstemon richardsonii Douglas ex Lindl. - cutleaf beardtongue

Variety: Penstemon richardsonii Douglas ex Lindl. var. dentatus (D.D. Keck) Cronquist - cutleaf beardtongue

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