Rocky Mountain Beardtongue
ExplorePlants
Rocky Mountain Beardtongue
penstemon strictus
The Rocky Mountain Beardtongue (Penstemon strictus) is a vibrant, clump-forming perennial wildflower native to the western United States, particularly the mountain and plateau regions. Belonging to the plantain family, this hardy species is celebrated for its stunning spikes of deep blue to violet-purple, tubular flowers that bloom from late spring through mid-summer. It plays a vital role in its native ecosystems, acting as a magnet for a wide variety of native pollinators, including bumblebees, solitary bees, and hummingbirds. Adaptable and resilient, this species thrives in dry, rocky soils and is highly drought-tolerant once established. Because of its striking beauty, low maintenance requirements, and ability to thrive in challenging conditions, the Rocky Mountain Beardtongue has also become a highly popular choice for native plant gardens, xeriscaping, and soil erosion control projects in arid regions. Want to find and snap Rocky Mountain Beardtongue yourself? Get the Snappit app.
Habitat: Found in open pine and juniper woodlands, sagebrush scrub, and montane meadows at elevations ranging from 1,500 to 3,000 meters.
Appearance
This plant features erect, unbranched stems growing from 30 to 80 centimeters tall, rising above a basal mat of smooth, lance-shaped, evergreen to semi-evergreen leaves. The most striking feature is the one-sided flower spike (thyrse), where numerous tubular, two-lipped flowers cluster. These blossoms range in color from a brilliant violet-blue to rich purple, with a throat that is often streaked with delicate magenta lines. Inside the flower, the sterile stamen (the 'beardtongue') is typically hairless or has very sparse yellow hairs, distinguishing it from other similar-looking Penstemon species.
KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderLamialesFamilyPlantaginaceaeGenusPenstemon
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
Be the first to snap!
Interesting facts
Despite its common name beardtongue, Penstemon strictus actually has a mostly hairless sterile stamen, making it smoother than many of its relatives.
The genus name Penstemon comes from Greek words meaning five stamens, referring to the characteristic fifth sterile stamen inside each flower.
This plant is highly valued for erosion control because its fibrous root system binds loose, rocky mountain soils together.
Special abilities
Ability
Drought Resistance
Features a deep, robust root system and thick, leathery leaves that allow it to conserve water and survive in arid, rocky soils.
Ability
Pollinator Magnet
The tubular shape and vivid blue-purple coloration of its flowers are specifically evolved to attract long-tongued bees and hummingbirds.
Ability
Winter Evergreen
Maintains a low-growing basal rosette of leaves throughout the winter, allowing it to photosynthesize immediately when spring arrives.
Measurements & details
- Length
- 30-80 cm
- Lifespan
- 3-8 years
Diet & Feeding
As a photoautotrophic plant, it synthesizes its own food using sunlight, water, and carbon dioxide through the process of photosynthesis.
Primary Foods
- Sunlight
- Water
- Carbon dioxide
- Soil minerals
Ecological connections
mutualism
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Hunt's Bumble Bee
Bombus huntii
Serves as a primary pollinator, seeking nectar inside the tubular flowers.
mutualism
Broad-tailed Hummingbird
Selasphorus platycercus
Visits the vibrant purple flowers for nectar, facilitating cross-pollination.
host plant
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Anicia Checkerspot
Euphydryas anicia
Larvae feed on the foliage of the plant, which serves as an important host.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
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Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Rocky Mountain Beardtongue?
The easiest way to identify Rocky Mountain Beardtongue is to use the Snappit nature identifier app.
How long is Rocky Mountain Beardtongue?
30-80 cm
How long does Rocky Mountain Beardtongue live?
3-8 years
What does Rocky Mountain Beardtongue eat?
As a photoautotrophic plant, it synthesizes its own food using sunlight, water, and carbon dioxide through the process of photosynthesis.
Where is Rocky Mountain Beardtongue usually found?
Found in open pine and juniper woodlands, sagebrush scrub, and montane meadows at elevations ranging from 1,500 to 3,000 meters.
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Where to spot
Park30 sightings12 species
New Mexico, US
Cumbres and Toltec Scenic Railroad
You might spot Rocky Mountain Beardtongue and Balkan Toadflax.
View guide →
Park30 sightings12 species
Colorado, US
Leadville Historic District
You might spot Fireweed, Scentless Mayweed, and Quaking Aspen.
View guide →
Park30 sightings12 species
Colorado, US
Redstone Coke Oven Historic District
You might spot Red Osier Dogwood and Creeping Mahonia.
View guide →
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