Flora of North America species comparison

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Penstemon ambiguus var. ambiguus

Penstemon ambiguus var. laevissimus
Photo is of parent taxon

gilia beardtongue
Photo is of parent taxon

pink plains beardtongue
Stems

scabrous proximally.

glabrous.
Leaf

blades: margins scabrous.

blades: margins glabrous or scabrous.
2n

= 16.

= 16.

Penstemon ambiguus var. ambiguus

Penstemon ambiguus var. laevissimus
Phenology Flowering May–Aug(–Sep). Flowering May–Aug(–Sep).
Habitat Dunes and loose sand, sandsage shrublands. Sandy soils, creosote bush, blackbrush, and sagebrush shrublands, juniper woodlands.
Elevation 700–2100 m. (2300–6900 ft.) 700–1800 m. (2300–5900 ft.)
Distribution
from FNA
CO; KS; NE; NM; OK; TX
[BONAP county map]
from FNA
AZ; NM; NV; TX; UT; Mexico (Chihuahua)
[BONAP county map]
Source FNA vol. 17, p. 95. FNA vol. 17, p. 95.
Parent taxa Plantaginaceae > Penstemon > subg. Penstemon > sect. Ambigui > Penstemon ambiguus Plantaginaceae > Penstemon > subg. Penstemon > sect. Ambigui > Penstemon ambiguus
Sibling taxa
P. ambiguus var. laevissimus
P. ambiguus var. ambiguus
Synonyms P. ambiguus subsp. laevissimus
Name authority unknown (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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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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