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Montana Field Guide

Montana Field Guides

Brewer's Cliffbrake - Pellaea breweri


Global Rank: G5
State Rank: S4
* (see State Rank Reason below)

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

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State Rank Reason (see State Rank above)
Pellaea breweri occurs widely scattered in central and western Montana. From 1949 and 1973-2014 about 30 locations have been found. Populations appear to be secure and grow in protected areas, such as the crevices of limestone in montane to subalpine habitats.
 
General Description
Leaves 4–15 cm long with petiole shorter than the blade. Leaf blade linear, once pinnate. Pinnae ascending, some 2-lobed or mitten-shaped. Sporangia with 64 spores (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
In MT scattered locations mostly in the southwest, although as far east as Big Horn County and north (disjunct) in Teton County; WA to MT south to CA, UT (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 30

(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
Crevices of limestone cliffs; montane to treeline.This species is strongly associated with Paleozoic rock formations (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Brewer's Cliffbrake — Pellaea breweri.  Montana Field Guide.  .  Retrieved on , from