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Penstemon angustifolius (Broadbeard penstemon)
Bransford, W.D. and Dolphia

Penstemon angustifolius

Penstemon angustifolius Nutt. ex Pursh

Broadbeard Penstemon, Broadbeard Beardtongue, Whorled Penstemon, Whorled Beardtongue

Scrophulariaceae (Figwort Family)


USDA Symbol: PEAN4

USDA Native Status: L48 (N)

Slender stems to 2 ft. with numerous intense-blue, tubular, unevenly 5-lobed flowers in stalked clusters, rising in pairs from upper leaf axils. Leaves are glaucous, blue-green.


From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Capsule
Size Notes: Up to about 2 feet tall.
Leaf: Green

Bloom Information

Bloom Color: Pink , Blue , Purple , Violet
Bloom Time: Apr , May , Jun , Jul


USA: AZ , CO , KS , MT , ND , NE , NM , OK , SD , UT , WY
Native Distribution: ND to e. MT & c. WY, s. to OK, n. NM, w. CO, e. UT & n.w. AZ
Native Habitat: Prairies; sand hills

Growing Conditions

Water Use: Low
Light Requirement: Sun
CaCO3 Tolerance: High
Soil Description: Sandy soils or light loams


Conspicuous Flowers: yes

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.


Description: Propagate by seed.
Seed Treatment: Germination is best with cold-moist stratification.
Commercially Avail: yes

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

View propagation protocol from Native Plants Network.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Tohono Chul Park, Inc. - Tucson, AZ
Native Seed Network - Corvallis, OR

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Penstemon angustifolius in USDA Plants
FNA: Find Penstemon angustifolius in the Flora of North America (if available)
Google: Search Google for Penstemon angustifolius


Record Modified: 2023-02-21
Research By: TWC Staff

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