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Penstemon species [Plantaginaceae]

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Scientific Name Penstemon albidus USDA PLANTS Symbol PEAL2
Common Name White Penstemon, White Beardtongue ITIS Taxonomic Serial No. 33666
Family Plantaginaceae (Plantain) SEINet
Reference
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Description Habitat: Sandy, rocky soils in pastures, fields, roadsides and other open areas.
Plant: Erect perennial, 12 to 24 inches tall; rough, minute hairs on stem and foliage; 2 to 5 stems arising from base.
Leaves: Basal leaves petiolate, mostly smooth edges, hairless or somewhat hairy, narrowly-spatulate to oblong, to 3-1/2 inches long and up to 3/4-inch wide with blunt or rounded tips; stem leaves opposite, sessile and more lanceolate upward with small-toothed edges.
Inflorescence: Whorl-like clusters of pubescent-hairy, funnel-shaped flowers, each up to 3/4-inch long, with pointed sepals 1/4 to 1/3 inch long below; white to pale-lavender petals with prominent purplish veins, united at base with 3-lobed lower lip and somewhat smaller 2-lobed upper lobe; 4 dark-tipped stamens along upper side; staminode with white to yellow hairs.
Bloom Period: April to June.
References: "Wildflowers of Texas" by Michael Eason, "Manual of the Vascular Plants of Texas" by Correll and Johnston, American Penstemon Society and Minnesota Wildflowers.
Note: The more recent photos from Austin are likely of garden escapees and the ID may be suspect.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Penstemon laxiflorus (Penstemon australis ssp. laxiflorus) USDA PLANTS Symbol PELA10
Common Name Nodding Beardtongue, Loose-flowered Penstemon ITIS Taxonomic Serial No. 33934
Family Plantaginaceae (Plantain) SEINet
Reference
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Description Habitat: Pastures, prairies, open woodlands; sandy or gravelly soils.
Plant: Erect to leaning perennial, 12 to 24 inches tall; very fine, minute hairs on stem, upper portion may be branched.
Leaves: Narrowly-lanceolate, 1/1/4 to 3-1/2 inches long; teeth along edges, clasping.
Inflorescence: Long-stalked widely-branched panicles of a few tubular flowers, each 3/4 to 1-1/4 inches long, white to pale-pink petals with lavender veins united at base with upper lip 2-lobed, lower lip 3-lobed; conspicuous, dense yellow hairs on staminode.
Bloom Period: March to June.
References: "Wildflowers of Texas" by Geyata Ajilvsgi and "Wildflowers of the Texas Hill Country" by Marshall Enquist.
BONAP Distribution Map

Texas Status:
Native

© Tom Lebsack 2021