Penstemon triflorus

(Scarlet Penstemon)


Penstemon triflorus, Wildflower Center, Austin, Travis Co. 7447


Penstemon triflorus, Wildflower Center, Austin, Travis Co. 8121

Scientific Name Penstemon triflorus USDA PLANTS Symbol PETR2
Common Name Scarlet Penstemon, Heller's Beardtongue ITIS Taxonomic Serial No. 34005
Family Plantaginaceae (Plantain) Wildflower Center Ref. Click Here
Description Habitat: Dry calcareous soils in portions of Central Texas.
Plant: Erect, slightly hairy perennial with multiple stems, 1 to 2 feet tall.
Leaves: Dark green, glossy opposite stem leaves; lower leaves sessile, linear to lanceolate 2 to 3 inches long with toothed edges; upper leaves smaller and connate and with smoother edges.
Inflorescence: Terminal racemes of tubular, two-lipped, 5-lobed pink-to-red flowers 1 to 1-1/4 inches long, with several lines on the lobes; staminode hairless.
Bloom Period: April and May.
References: "Wildflowers of the Texas Hill Country" by Marshall Enquist, "Wildflowers of Texas" by Michael Eason and Southwest Desert Flora
Note: Images taken at Lady Bird Johnson Wildflower Center; the plant is not native to Travis County.
BONAP Distribution Map

Map Color Key
Texas Status:

Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County

© Tom Lebsack 2024