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Montana Field Guide

Montana Field Guides

Lace Fern - Aspidotis densa
Other Names:  Cryptogramma densa

Status Under Review

Global Rank: G5
State Rank: SNR

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

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General Description
Plants with a short, branched rhizome covered with glossy, brown scales. Leaves clustered, dimorphic, 6–20 cm long with long, shiny petioles and lance-shaped to triangular blades. Sterile leaves parsley-like, 2 to 3 times pinnate with oblong pinnules. Fertile leaves longer, 2 to 3 times pinnate with leathery, linear pinnules. Fertile pinnules mucronate with a prominent midrib and pale indusia partly covering the sori from the margins (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
In MT in Lincoln, Flathead, Sanders, Lake and Ravalli counties; BC to CA; UT, WY and disjunct in QC (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 2

(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

References
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Citation for data on this website:
Lace Fern — Aspidotis densa.  Montana Field Guide.  .  Retrieved on , from