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Montana Field Guide

Montana Field Guides

Short-flowered Monkeyflower - Mimulus breviflorus

Species of Concern
Native Species

Global Rank: G4
State Rank: S1S2
(see State Rank Reason below)

Agency Status
MNPS Threat Rank: 3
C-value: 3

External Links

State Rank Reason (see State Rank above)
Rare in Montana, where it is known from a few, scattered locations in the northwest corner of the state.
General Description
Short-flowered Monkeyflower is a slender, glandular annual with branched stems that are up to 10 cm high. The opposite leaves have petioles and narrowly elliptic blades that are 5-20 mm long with entire or sparingly-toothed margins. The long-stalked flowers are borne in the axils of the upper leaves. The glandular, tubular calyx has 5 short lobes. The faintly spotted, yellow, tubular corolla is 4-7 mm long, has 5 nearly equal lobes, and is slightly 2-lipped. The fruit is a round capsule.

Flowering in late May - early June.

Diagnostic Characteristics
Mimulus floribundus has broadly lance-shaped leaf blades, and M. suksdorfii has strap-shaped leaves without petioles.

Species Range

Range Comments
Flathead and Glacier counties. WA to MT south to CA and NV (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 13

(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)

Shallow, vernally moist soil among rock outcrops in coniferous forests or grasslands in the montane zone.

  • Additional ReferencesLegend:   View Online Publication
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    • Lesica, P. and P. F. Stickney. 1994. Noteworthy collections: Montana. Madrono 41:228-231.
    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Short-flowered Monkeyflower — Mimulus breviflorus.  Montana Field Guide.  .  Retrieved on , from