Larch-leaf Beardtongue - Penstemon laricifolius
State Rank Reason (see State Rank above)
In Montana, Penstemon laricifolius is known from Carbon County where it is common on the south and west flanks of the Pryor Mountains.
Stems 5–20 cm. Herbage glabrous, often with puberulent stems. Basal leaf blades densely clustered, filiform, entire, 1–4 cm long. Stem leaves similar. Inflorescence an open, glabrous raceme or panicle. Flowers: calyx 3–6 mm long; sepals lanceolate, acuminate, basally scarious-margined; corolla rose to burgundy, 11–20 mm long, glabrous; anthers glabrous, opening across their full length. Capsule ca. 5 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Blooming in June.
Carbon and Big Horn counties, MT to CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Occurs in sandy, often limestone-derived, soils in juniper, Cercocarpus ledifolius and Artemisia arbuscula woodlands and shrublands typically between 4500 and 6000 ft (1370 to 1800 m).
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- Lesica, P. and P.L. Achuff. 1992. Distribution of vascular plant species of special concern and limited distribution in the Pryor Mountain desert, Carbon County, Montana. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena, MT. 105 pp.
- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Strickler, D. 1997. Northwest penstemons. Flower Press, Columbia Falls, Montana. 191 pages.