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Penstemon australis Small
Eustis Lake Penstemon, Eustis Lake Beardtongue, Slender Penstemon, Slender Beardtongue
Scrophulariaceae (Figwort Family)
USDA Symbol: PEAU
USDA Native Status: L48 (N)
This perennialís smooth or hairy flower stalks are 1-2+ ft. tall and bear pairs of lance-shaped leaves. The tubular flowers, which occur in short-stalked pairs at the top of the plant, are deep-rose on the outside and white on the inside.
Slender Beardtongue is a member of the figwort or snapdragon family (family Scrophulariaceae), which includes mostly herbs, sometimes shrubs, rarely trees, often with showy flowers. There are about 220 genera and 3,000 species occurring nearly throughout the world.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Fruit Type: Capsule
Size Notes: Up to about 32 inches tall.
Bloom InformationBloom Color: White , Pink , Purple
Bloom Time: Mar , Apr , May , Jun , Jul
Bloom Notes: White to pinkish or light lavender, with dark purple nectar guides.
DistributionUSA: AL , FL , GA , NC , SC , TN , VA
Native Distribution: Coastal Plain from LA to s.e. VA
Native Habitat: Dry pinelands; thin, upland woods; sand hills; dry, fallow fields
Growing ConditionsLight Requirement: Part Shade
Soil Moisture: Dry
Soil Description: Dry, sandy or thin soils.
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: Propagate by seed.
Seed Treatment: Germination is best with cold-moist stratification.
Commercially Avail: yes
National Wetland Indicator Status
Web ReferenceWebref 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
Research LiteratureReslit 2627 - Notes on eastern American species of Penstemon (1963) R. W. Bennett
This information was provided by the Florida WIldflower Foundation.
Search More Titles in Research Literature
Additional resourcesUSDA: Find Penstemon australis in USDA Plants
FNA: Find Penstemon australis in the Flora of North America (if available)
Google: Search Google for Penstemon australis
MetadataRecord Modified: 2023-02-21
Research By: TWC Staff