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Montana Field Guides

Small-flowered Evening-primrose - Camissonia minor
Other Names:  Oenothera minor

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Potential Species of Concern
Native Species

Global Rank: G4
State Rank: S3S4
State Threat Score: No Known Threats
C-value:


Agency Status
USFWS:
USFS:
BLM:


 

External Links

 
General Description
Taprooted annual. Stems slender, erect, 5–20 cm, branched from the base. Herbage glabrate, glandular above. Leaves petiolate, mostly basal; the blade oblanceolate, 1–5 cm long. Inflorescence a leafy-bracteate spike. Flowers: hypanthium 1–3 mm long; sepals 1–2 mm long, reflexed; petals 1–2 mm long, white; stigma globose. Capsule sessile, linear, straight to contorted, 4-angled, glandular-puberulent, 8–25 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Wagner et al. (2007, Syst. Bot. Monogr. Vol. 83) treat this as Eremothera minor (A. Nelson) W.L. Wagner & Hoch.

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
WA to MT south to CA, NV, UT and CO. Known from Carbon County (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 23

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

Recency

 

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



Habitat
Dry sandy or gravelly soil of juniper woodlands or plant associations dominated by Artemisia tridentata.
Predicted Suitable Habitat Model

This species has a Predicted Suitable Habitat Model available.

To learn how these Models were created see mtnhp.org/models

References
  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • 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 Unpublished report to the Bureau of Land Management.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. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 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.
  • Web Search Engines for Articles on "Small-flowered Evening-primrose"
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Citation for data on this website:
Small-flowered Evening-primrose — Camissonia minor.  Montana Field Guide.  .  Retrieved on , from