OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Penstemon digitalis   FAMILY Plantaginaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Penstemon digitalis   FAMILY Scrophulariaceae

SYNONYMOUS WITH Flora of North America

Penstemon digitalis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 166-14-005:

Penstemon digitalis   FAMILY Scrophulariaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Penstemon digitalis

 

COMMON NAME:
Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue


         To see larger pictures, click or hover over the thumbnails.

image of Penstemon digitalis, Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_pedi_001_lvd

        

image of Penstemon digitalis, Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_pedi_009_lvd

        

image of Penstemon digitalis, Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue

Will Stuart    wil_8441965916_4561ce9196

May    Durham County    NC

Blomquist Gardens

The floral tube flares abruptly; the 4 functional anthers are dark brown, per All About South Carolina Wildflowers (Midgley, 1999).

image of Penstemon digitalis, Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue

JK Marlow    jkm160610_967

June    Pickens County    SC

SC Botanical Garden

Cauline leaves 6.5-21cm long, 1.7-4.6cm wide, apices subacuminate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Penstemon digitalis, Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue

JK Marlow    jkm160610_972

June    Pickens County    SC

SC Botanical Garden

Capsule 8-12mm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Penstemon digitalis, Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue

JK Marlow    jkm160610_974

June    Pickens County    SC

SC Botanical Garden

Leaves glabrous, subcoriaeceous, denticulate to subentire, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Penstemon digitalis, Foxglove Beardtongue, Tall White Beardtongue, Smooth Beardtongue

JK Marlow    jkm160610_980

June    Pickens County    SC

SC Botanical Garden

Stem leaves tend to be widely spaced & at right angles to pair above & below, per www.minnesotawildflowers.info.

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Penstemon digitalis   FAMILY Plantaginaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Penstemon digitalis   FAMILY Scrophulariaceae

SYNONYMOUS WITH Flora of North America
Penstemon digitalis

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 166-14-005:
Penstemon digitalis   FAMILY Scrophulariaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Penstemon digitalis

 

Find by SCIENTIFIC NAME:

1045

Forb
Perennial

Habitat: alluvial forests, moist fields, disturbed areas, ditches, per Weakley's Flora

Native (the original distribution is somewhat uncertain)

Uncommon in NC Piedmont (rare elsewhere in GA-NC-SC)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Basal rosette & opposite

FLOWER:
Spring/Summer
White
Bilaterally symmetrical
5 sepals
2-lipped 5-lobed tubular corolla
4 fertile stamens (anthers purple) & 1 staminode bearded with white trichomes
Superior ovary
Bisexual

FRUIT:
Summer
Brown
Capsule

 

TO LEARN MORE about this plant, look it up in a good book!



 


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