Flora of North America species comparison

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Penstemon angustifolius var. dulcis

Penstemon angustifolius var. venosus
Photo is of parent taxon

broadbeard beardtongue, sweet beardtongue
Photo is of parent taxon

broadbeard beardtongue
Stems

27–45 cm, glabrous.

17–65 cm, glabrous.
Cauline leaves

5–8 pairs, blade lanceolate to linear.

5–8 pairs, blade ovate to lanceolate.
Thyrses

proximal bracts ovate to lanceolate.

proximal bracts ovate to lanceolate.
Flowers

corolla pink, 13–17 mm.

corolla blue to lavender or pink, 14–17 mm.

Penstemon angustifolius var. dulcis

Penstemon angustifolius var. venosus
Phenology Flowering May–Jun. Flowering Apr–Jun.
Habitat Sand dunes, sagebrush, saltbush, juniper communities. Sandy soils, blackbrush, sagebrush, and pinyon-juniper woodlands.
Elevation 1400–1700 m. (4600–5600 ft.) 1400–2300 m. (4600–7500 ft.)
Distribution
from FNA
UT
[BONAP county map]
from FNA
AZ; CO; NM; UT
[BONAP county map]
Discussion

Variety dulcis is known from Juab and Millard counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Although variety venosus shares many morphologic features with var. caudatus, it generally exhibits more variation in corolla color than var. caudatus, and the varieties are largely allopatric except possibly in north-central New Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 115. FNA vol. 17, p. 115.
Parent taxa Plantaginaceae > Penstemon > subg. Penstemon > sect. Coerulei > Penstemon angustifolius Plantaginaceae > Penstemon > subg. Penstemon > sect. Coerulei > Penstemon angustifolius
Sibling taxa
P. angustifolius var. angustifolius, P. angustifolius var. caudatus, P. angustifolius var. venosus, P. angustifolius var. vernalensis
P. angustifolius var. angustifolius, P. angustifolius var. caudatus, P. angustifolius var. dulcis, P. angustifolius var. vernalensis
Synonyms P. angustifolius subsp. venosus
Name authority Neese: Great Basin Naturalist 46: 459. (1986) (D. D. Keck) N. H. Holmgren: Brittonia 31: 104. (1979)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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