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Montana Animal Field Guide

Montana Field Guides

Bitterroot - Lewisia rediviva

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Global Rank: G5
State Rank: S4S5

Agency Status
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USFS:
BLM:
MNPS Threat Rank:
C-value:

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General Description
Roots fleshy, branched with a simple or branched caudex. Stems leafless, erect or ascending, 1–5 cm with a whorl of membranous bracts below the flower. Basal leaf blades tubular 1–5 cm long, appearing and usually disappearing before flowering. Flowers solitary; sepals 6 to 9, unequal, 8–25 mm long with entire margins; petals 12 to 18, white to pink, 15–35 mm long; stamens numerous; style branches 4 to 8 (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Bitterroot is the State Flower of Montana.

Species Range
Present
 


Range Comments
In MT across much of western and southern MT; BC to AB south to CA, AZ, and CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 44

(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
Gravelly or sandy, well-drained, usually sparsely-vegetated soil of grasslands; valleys, montane (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Bitterroot — Lewisia rediviva.  Montana Field Guide.  .  Retrieved on , from