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Montana Field Guide

Montana Field Guides

One-flowered Broomrape - Orobanche uniflora

Native Species

Global Rank: G5
State Rank: SNR
C-value: 4


Agency Status
USFWS:
USFS:
BLM:


 

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General Description
Stems ca. 1 cm above ground. Herbage whitish, glandular-pubescent. Inflorescence glandular-pubescent, of 1–2 (3–5) pedicellate flowers; pedicels erect, 2–8 cm long. Flowers: calyx 5–10 mm long; sepals acuminate-lanceolate, 3–7 mm long; corolla 13–20 mm long, purple, the lobes 2–4 mm long. Capsule 8–10 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety minuta (Suksd.) Beck.

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
Much of temperate North America (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 41

(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
Stony, often vernally moist, often shallow soil of grasslands, meadows, open forest; valleys to subalpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Ecology
POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus pensylvanicus (Colla and Dumesh 2010).

References
  • 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.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Chadde, S.W. 1985. Initial recovery patterns of southwestern Montana foothill range. M.Sc. Thesis. Bozeman, MT: Montana State University. 103 p.
    • Hawkins, P.H. 1903. The alpine flora of Montana. M.Sc. Thesis, Bozeman, MT: Montana State University. 24 pp.
    • Williams, K.L. 2012. Classification of the grasslands, shrublands, woodlands, forests and alpine vegetation associations of the Custer National Forest portion of the Beartooth Mountains in southcentral Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 376 p.
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Citation for data on this website:
One-flowered Broomrape — Orobanche uniflora.  Montana Field Guide.  .  Retrieved on , from