Penstemon serrulatus Menzies ex Sm.
Serrulate penstemon, Serrulate beardtongue, Cascade penstemon, Cascade beardtongue, Coast penstemon, Coast beardtongue
Scrophulariaceae (Figwort Family)
USDA Symbol: PESE5
Several 1-2 ft., leafy stems rise from a woody base. The leaves spaced along the stalks are opposite, oval, rather stiff, and with sharp-pointed teeth. One to several whorls of deep blue to purple, tubular flowers are near the top of the flower stalk, bilaterally symmetrical flowers.
This is one of the few penstemons occurring west of the Cascade Range. Serrulatus refers to the little, serrated teeth on the leaves.
From the Image Gallery
Bloom InformationBloom Color: Blue , Purple
Bloom Time: Jun , Jul , Aug
DistributionUSA: AK , OR , WA
Native Distribution: S. B.C. to s. Lane Co., OR, w. of the crest
Native Habitat: A variety of moist to wet habitats from the coast to 6000 ft.
Growing ConditionsLight Requirement: Part Shade
Soil Moisture: Wet
Soil Description: Moist to wet soils.
Conditions Comments: The best penstemon for the mild, damp winters on the wet side of the mountains.
BenefitUse Wildlife: Hummingbirds
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: Seeds germinate without difficulty although seedlings are easy prey to damp off. The root crown may be divided.
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Native Seed Network - Corvallis, OR
Additional resourcesUSDA: Find Penstemon serrulatus in USDA Plants
FNA: Find Penstemon serrulatus in the Flora of North America (if available)
Google: Search Google for Penstemon serrulatus
MetadataRecord Modified: 2014-07-17
Research By: TWC Staff