GENUS CODE: PENST GENUS SCIENTIFIC:Penstemon GENUS AUTHORITY: Schmidel GENUS COMMON: Beardtongue GENUS SUMMARY: [contributed by Alan S. Weakley and Dwayne Estes] GENUS IDENTIFICATION: GENUS REFERENCES: Estes (2012)=Y; Clements, Baskin, & Baskin (1998)=Z; Pennell (1935)=P. Key based on Y and Z.
FAMILY CODE: PLANTA FAMILY SCIENTIFIC:Plantaginaceae FAMILY AUTHORITY: A.L. de Jussieu 1789 FAMILY COMMON: Plantain Family FAMILY SUMMARY: As radically recircumscribed, a family of about 120 genera and 1800 species. FAMILY REFERENCE: Albach, Meudt, & Oxelman (2005); Olmstead et al. (2001); Schwarzbach in Kadereit (2004); Fischer in Kadereit (2004).
INTRO:Erectperennial of low meadows and forest edges where the soil is moist and sandy, moist fields, clearings and other open, disturbed areas. STEMS: Stems unbranched, smooth or finely hairy. LEAVES: Leaves opposite,sessile, lance-shaped or oval, 2-8 in. long, finely toothed, smooth or with fine hairs on the mid-vein beneath. INFLORESCENCE: FLOWERS: Flowers in a moderately compact, terminalpanicle, with branches (may be glandular-hairy) angled upward; flwoers white (later tinged purple), 3/4-1 1/4 in. long, bilaterally symmetric,tubular with an abruptly inflatedthroat and 2 lips, the upper lip 2-lobed and of equal length to the lower, which is 3 lobed. Corollathroat white with purple lines inside. FRUITS:Fruit a capsule. COMMENTS: Identification of Penstemon species is difficult due to variations in flower characters such as color, patterning, relative length of parts and degree of constriction/dilation of the corolla tube. HEIGHT: 2-4 ft. DURATION:
Opposite LEAF COMPLEXITY:
Simple LEAF RETENTION:
Semi-evergreen FLORAL CHARACTERISTICS
BLOOM TIME: May-July
BLOOM COLOR: White
FRUITING PERIOD: Jul-Aug. DISTRIBUTION
HABITAT TYPE: Bottomlands, Disturbed
NATIVE RANGE: eastern North America HORTICULTURAL
Plant Sale Text: Foxglove beardtongue produces loose clusters of flowers borne on upright unbranched stems, up to 4 ft. in height. The flowers open white, then darken to a pale purplish shade. It makes an excellent cut flower. Its seed pods can provide interest in the fall, and its leafy rosettes persist through the winter. In the wild, foxglove beardtongue can be found in low meadows and forest edges where the soil is moist and sandy. It does well in full sun and relatively well-drained soil.
Bloom Table Text: The foliage of this robust perennial can be semi-evergreen in the South making it a good groundcover candidate. When in bloom, it’s erect, 2-5 ft. stems are topped with stalked clusters of white, tubular, unevenly five-lobed flowers which rise in pairs from the upper leaf axils. A strong pollinator magnet, it is highly entertaining to watch our little native bumblebees crawl in and out gathering nectar and pollen as they go.
Some authorities say this species was originally indigenous only to areas in the Mississippi Basin.
This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast
SCIENTIFIC NAME: Penstemon digitalis
COMMON NAME: Tall White Beardtongue
SYNONYMY: [= C, F, G, GW, K, P, RAB, S, Va, W, WV, Y, Z; < P. digitalis - Mo]
PHENOLOGY: May-Jul; Jul-Aug.
HABITAT: Alluvial forests, moist fields, disturbed areas.
COMMENTS: NS and ME west to MN and SD, south to e. VA, w. SC, AL, and TX. The original distribution is somewhat uncertain.
RANGE MAP: Penstemon digitalis.png
Key to Map SymbolsABOUT FAMILY (Weakley Flora) Plantaginaceae A.L. de Jussieu 1789 (Plantain Family) SUMMARY: As radically recircumscribed, a family of about 120 genera and 1800 species. REFERENCE: Albach, Meudt, & Oxelman (2005); Olmstead et al. (2001); Schwarzbach in Kadereit (2004); Fischer in Kadereit (2004).ABOUT GENUS (Weakley Flora) Penstemon Schmidel (Beardtongue) SUMMARY: [contributed by Alan S. Weakley and Dwayne Estes] REFERENCE: Estes (2012)=Y; Clements, Baskin, & Baskin (1998)=Z; Pennell (1935)=P. Key based on Y and Z.
SERNEC: Find Penstemon digitalis in Southeast Regional Network of Experts and Collections (if available) UNC SERNEC: Find Penstemon digitalis in
University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)