Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

White-stemmed Evening-primrose - Oenothera nuttallii

Native Species

Global Rank: G5
State Rank: SNR

Agency Status
MNPS Threat Rank:
C-value: 4

External Links

General Description
Perennial with rhizome-like caudex branches. Stems erect, horizontally branched, 40–60 cm with white, peeling epidermis, glandular above. Herbage strigose. Leaves cauline, linear-lanceolate or oblanceolate, entire to weakly serrate, 2–10 cm long with fascicles in some axils. Flowers white; hypanthium 15–30 mm long, glandular; sepals 1–2 cm long, united to one side; petals 15–20 mm long; stigma lobes 4–6 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
BC to ON south to CO, KS and MN (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 21

(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)

Sandy soil of grasslands, sagebrush steppe; plains (Lesica 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 pensylvanicus and Bombus impatiens (Colla and Dumesh 2010).

  • 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.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
  • Web Search Engines for Articles on "White-stemmed Evening-primrose"
Login Logout
Citation for data on this website:
White-stemmed Evening-primrose — Oenothera nuttallii.  Montana Field Guide.  .  Retrieved on , from