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Montana Field Guide

Montana Field Guides

Western Polypody - Polypodium hesperium

Status Under Review

Global Rank: G5
State Rank: S3?
* (see State Rank Reason below)

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

External Links






State Rank Reason (see State Rank above)
Over 30 collections at MONTU from 7 western Montana counties.
 
General Description
Small plants with long, creeping, scaly rhizomes. Leaves scattered, monomorphic, 3–35 cm long with a petiole shorter than the blade. Leaf blade glabrous, somewhat leathery, lanceolate, once pinnately lobed almost to the rachis, with shallowly toothed or wavy margins. Sori circular, borne midway between midvein and margins of leaf divisions. Indusium absent (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
In MT from Lincoln to Glacier counties south to Ravalli Co.; BC and AB to Mexico (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 34

(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
Moist to wet, usually moss-covered boulders, cliffs; valleys to subalpine. (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Western Polypody — Polypodium hesperium.  Montana Field Guide.  .  Retrieved on , from