North America Native Plant

Marcus’ Beardtongue

Botanical name: Penstemon marcusii

USDA symbol: PEMA13

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Penstemon moffatii Eastw. ssp. marcusii D.D. Keck (PEMOM3)   

Marcus’ Beardtongue: A Rare Utah Native Worth Protecting in Your Garden If you’re looking to add a touch of Utah’s wild beauty to your garden while supporting conservation efforts, Marcus’ beardtongue (Penstemon marcusii) might be exactly what you need. This lovely native wildflower is as rare as it is charming, ...

Rare plant alert!

Region: Conservation status by state

Status: S2: 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) ⚘

Marcus’ Beardtongue: A Rare Utah Native Worth Protecting in Your Garden

If you’re looking to add a touch of Utah’s wild beauty to your garden while supporting conservation efforts, Marcus’ beardtongue (Penstemon marcusii) might be exactly what you need. This lovely native wildflower is as rare as it is charming, making it a special addition for gardeners who want to make a difference.

What Makes Marcus’ Beardtongue Special?

Marcus’ beardtongue is a perennial wildflower that belongs to the snapdragon family. Like other penstemons, it produces beautiful tubular flowers that are perfectly designed for attracting pollinators. This particular species blooms with stunning purple to violet flowers in late spring to early summer, creating a delightful display that both you and local wildlife will appreciate.

As a forb (a non-woody flowering plant), Marcus’ beardtongue grows close to the ground with its perennating buds tucked safely at or below the soil surface, helping it survive harsh winters and return year after year.

A True Utah Native

This beardtongue is endemic to Utah, meaning it naturally occurs nowhere else in the world. You’ll find it specifically in the Uinta Basin region, where it has adapted to the unique growing conditions of this high-elevation area.

Important Conservation Note

Here’s something crucial to know: Marcus’ beardtongue has a Global Conservation Status of S2, which means it’s considered imperiled due to extreme rarity. With typically only 6 to 20 known occurrences and possibly just 1,000 to 3,000 individuals remaining in the wild, this plant needs our help.

If you’re interested in growing Marcus’ beardtongue, please only source it from reputable native plant nurseries that use responsibly collected or propagated materials. Never collect seeds or plants from wild populations – every individual in nature is precious for the species’ survival.

Perfect for Specialized Gardens

Marcus’ beardtongue is ideal for:

  • Native plant gardens focused on Utah species
  • Rock gardens and xeriscaping projects
  • Naturalistic landscapes
  • Conservation gardens
  • Pollinator-friendly spaces

Pollinator Paradise

The tubular shape of Marcus’ beardtongue flowers makes them perfect landing pads for native bees, and their nectar is a favorite of hummingbirds. Butterflies also visit these blooms, making your garden a buzzing hub of beneficial activity. By growing this rare native, you’re providing crucial habitat for pollinators that co-evolved with this plant.

Growing Marcus’ Beardtongue Successfully

USDA Hardiness Zones: 4-8

Growing Conditions:

  • Full sun to partial shade
  • Well-draining soils (this is crucial!)
  • Low water requirements once established
  • Tolerates poor, rocky soils

Planting and Care Tips

When to Plant: Spring or fall are the best times for establishing Marcus’ beardtongue.

Soil Preparation: The most important factor is drainage. If you have heavy clay soil, consider creating a raised bed or adding coarse sand and gravel to improve drainage. This plant absolutely cannot tolerate wet feet.

Watering: Water regularly during the first growing season to help establish roots, then reduce watering significantly. Overwatering is one of the fastest ways to kill this drought-adapted native.

Maintenance: Marcus’ beardtongue is relatively low-maintenance once established. You can deadhead spent flowers to encourage more blooms, but leaving some seed heads provides food for birds and allows for natural reseeding.

A Garden with Purpose

Growing Marcus’ beardtongue isn’t just about adding beauty to your landscape – it’s about participating in conservation. By cultivating this rare native in your garden, you’re helping preserve Utah’s botanical heritage and providing a refuge for a species that’s struggling in the wild.

Remember, every garden can make a difference. When you choose rare natives like Marcus’ beardtongue (sourced responsibly, of course), you’re creating a living conservation area right outside your door. Plus, you’ll have the satisfaction of knowing you’re growing something truly special that few other gardeners have the privilege to cultivate.

Just make sure to source your plants ethically, give them the well-draining conditions they crave, and enjoy watching this little piece of Utah’s wild heritage thrive in your garden.

Marcus’ 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 marcusii (D.D. Keck) N.H. Holmgren - Marcus' beardtongue

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