Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Penstemon australis
FAMILY
Plantaginaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Downy Beardtongue at Vascular Plants of North Carolina.
Many specimens of Penstemon from the Appalachian Piedmont combine morphological features of P. australis and P. canescens. These plants usually have equally developed cyme branches (as in P. canescens) but ascending or erect peduncles and pedicels (as in P. australis). Leaf shape generally is intermediate between P. australis and P. canescens. F.W. Pennell in the 1930s annotated most such specimens as P. australis. F.S. Crosswhite (1965e) also included these specimens in his concept of P. australis, assigning them subspecies status.... The relationship of these plants remains unclear; they will key to P. canescens or P. laxiflorus. Read more at Flora of North America.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Penstemon australis
FAMILY
Scrophulariaceae
SYNONYMOUS WITH Flora of North America
Penstemon australis
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 166-14-004:
Penstemon australis FAMILY Scrophulariaceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Penstemon australis
COMMON NAME:
Downy Beardtongue, Sandhill Beardtongue, Southern Beardtongue, Southeastern Beardtongue
To see larger pictures, click or hover over the thumbnails.
Alan Cressler alc_8754892087
May DeKalb County GA
Stone Mountain Park
Corolla throats may be closed or nearly so (the lower lip arching upwards), per Weakley's Flora (2015).
JK Marlow jkm120512_706
May Greenville County SC
Peduncles strongly ascending, the inflorescence therefore narrow, per Weakley's Flora.
JK Marlow jkm190506_8170
May Greenville County SC
Swamp Rabbit Trail
Corolla 15-25mm long, gradually inflated to a throat 6-8mm in diameter, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm190506_8172
May Greenville County SC
Swamp Rabbit Trail
Cauline leaves coarsely toothed to rarely subentire, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm160605_880
June Greenville County SC
Tall Pines Wildlife Management Area
Cauline leaves glabrous to pubescent, moderately thick, narrowly lanceolate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm160605_900
June Greenville County SC
Tall Pines Wildlife Management Area
Thyrse not leafy; bracts of the inflorescence reduced, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm160605_906
June Greenville County SC
Tall Pines Wildlife Management Area
Pollinator at work: a hummingbird moth (bee hawk-moth) of the genus Hemaris.
JK Marlow jkm160609_921
June Greenville County SC
Tall Pines Wildlife Management Area
Basal leaves oblanceolate to obovate, often persistent through anthesis, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm160609_924b
June Greenville County SC
Tall Pines Wildlife Management Area
Capsule 6-8(10)mm long, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Penstemon australis
FAMILY
Plantaginaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Penstemon australis
FAMILY
Scrophulariaceae
SYNONYMOUS WITH
Flora of North America
Penstemon australis
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 166-14-004:
Penstemon australis
FAMILY
Scrophulariaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Penstemon australis
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