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Montana Field Guides

Yellow Evening Primrose - Calylophus serrulatus
Other Names:  Oenothera serrulata

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Native Species

Global Rank: G5
State Rank: S3?
C-value: 4


Agency Status
USFWS:
USFS:
BLM:


 

External Links

 
General Description
Perennial subshrub with a woody, branched caudex. Stems ascending, 10–40 cm. Herbage strigose. Leaves all cauline, alternate, short-petiolate; blades simple, linear to oblanceolate, serrulate, 1–3 cm long with axillary fascicles of smaller leaves. Inflorescence: solitary, sessile flowers in axils of upper leaf-like bracts. Flowers 4-merous; hypanthium trumpet-shaped, 5–7 mm long; sepals 3–5 mm long; petals yellow, obovate, 7–10 mm long; stamens 8; stigma discoid, shallowly lobed. Fruit a sessile, linear, 4-loculate capsule15–25 mm long; seeds in 2 rows per locule (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 Oenothera serrulata Nutt.

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
AB to MB south to AZ, NM, TX, MO and Mexico (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 98

(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
Often sandy or gravelly soil of grasslands; plains (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).)


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?
    • DuBois, K.L. 1979. An inventory of the avifauna in the Long Pines of Southeastern Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 113 p.
    • Fritzen, D.E. 1995. Ecology and behavior of Mule Deer on the Rosebud Coal Mine, Montana. Ph.D. Dissertation. Bozeman, MT: Montana State University. 143 p.
    • Harvey, S.J. 1990. Responses of steppe plants to gradients of water soil texture and disturbance in Montana, U.S.A. Ph.D. Thesis. Bozeman, MT: Montana State University. 34 p.
    • 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.
    • Rennick, R.B. 1981. Effects of prescribed burning on mixed prairie vegetation in southeastern Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 144 p.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
    • Skilbred, Chester L. 1979. Plant succession on five naturally revegetated strip-mined deposits at Colstrip, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 128 pp.
    • Wood, A.K. 1987. Ecology of a prairie mule deer population. Ph.D. Dissertation. Bozeman, MT: Montana State University. 205 p.
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Citation for data on this website:
Yellow Evening Primrose — Calylophus serrulatus.  Montana Field Guide.  .  Retrieved on , from