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Montana Field Guide

Montana Field Guides

Hot-rock Beardtongue - Penstemon deustus

Status Under Review
Native Species

Global Rank: G5
State Rank: SNR

Agency Status
MNPS Threat Rank:

External Links

General Description
Stems clustered, sprawling to erect, 10–30 cm, some sterile. Herbage glabrous. Leaves all cauline, oblanceolate, lanceolate, or ovate, sharply serrate, 2–6 cm long, petiolate below, sessile above. Inflorescence of 2 to 5, glabrous to obscurely glandular verticillasters. Flowers: calyx 4–6 mm long; sepals lanceolate, distally scarious-margined; corolla whitish, 9–14 mm long, obscurely glandular-puberulent; anthers glabrous, opening across their full length. Capsule 3–6 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Montana plants are variety deustus.

Range Comments
WA to MT south to CA, NV, UT and WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Rock outcrops, talus slopes, stony soil of sagebrush steppe, woodlands; montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • Additional ReferencesLegend:   View Online Publication
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    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
    • Strickler, D. 1997. Northwest penstemons. Flower Press, Columbia Falls, Montana. 191 pages.
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Citation for data on this website:
Hot-rock Beardtongue — Penstemon deustus.  Montana Field Guide.  .  Retrieved on , from