Showy Jacob's-ladder - Polemonium pulcherrimum
MNPS Threat Rank
Tufted perennial from a simple or branched caudex. Stems erect, simple or basally branched, 5–30 cm. Herbage glabrous, glandular-puberulent. Leaves mostly basal, 5–15 cm long; blades with 11–23 lanceolate, entire leaflets 5–10 mm long. Inflorescence a terminal, leafy-bracted cyme. Flowers: calyx 4–7 mm long; corolla broadly funnel-form, tube yellow at the apex, 4–5 mm long, lobes 4–8 mm long; stamens and style shorter than the corolla. Capsule 3–5 mm long, enclosed in the calyx (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
Our plants are variety pulcherrimum
AK to CA, AZ and NM (Lesica et al. 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)
Stony soil of outcrops, grasslands, meadows, talus slopes; valleys to subalpine, more common lower (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus vagans
, Bombus bifarius
, Bombus flavifrons
, Bombus sylvicola
, Bombus griseocollis
, Bombus impatiens
, and Bombus kirbiellus
(Macior 1968, Macior 1974, Wilson et al. 2010, Colla and Dumesh 2010, Miller-Struttmann and Galen 2014).
- Literature Cited AboveLegend: View Online Publication
- Colla, S.R. and S. Dumesh. 2010. The bumble bees of southern Ontario: notes on natural history and distribution. Journal of the Entomological Society of Ontario 141: 39-68.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Macior, L.M. 1968. Bombus (Hymenoptera, Apidae) queen foraging in relation to vernal pollination in Wisconsin. Ecology 49:20-25.
- Macior, L.M. 1974. Pollination ecology of the Front Range of the Colorado Rocky Mountains. Melanderia 15: 1-59.
- Miller-Struttmann, N.E. and C. Galen. 2014. High-altitude multi-taskers: bumble bee food plant use broadens along an altitudinal productivity gradient. Oecologia 176:1033-1045.
- Wilson, J.S., L.E. Wilson, L.D. Loftis, and T. Griswold. 2010. The montane bee fauna of north central Washington, USA, with floral associations. Western North American Naturalist 70(2): 198-207.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Aho, Ken Andrew. 2006. Alpine and Cliff Ecosystems in the North-Central Rocky Mountains. Ph.D. Dissertation. Bozeman, Montana: Montana State University. 343 p.
- Ament, R.J. 1995. Pioneer Plant Communities Five Years After the 1988 Yellowstone Fires. M.Sc. Thesis. Bozeman, MT: Montana State University. 216 p.
- Clark, D. 1991. The effect of fire on Yellowstone ecosystem seed banks. M.Sc. Thesis. Montana State University, Bozeman. 115 pp.
- Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
- Eversman, S.T. 1968. A comparison of plant communities and substrates of avalanche and non-avalanche areas in south central Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 39 pp.
- Johnson, T. W. 1982. An analysis of pack and saddle stock grazing areas in the Bob Marshall Wilderness. M.Sc.Thesis. Bozeman, MT: Montana State University. 105 p.
- Saunders, J.K., Jr. 1954. A two-year investigation of the food habits and range use of the Rocky Mountain goat in the Crazy Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 22 p.