Northern Swordfern - Polystichum lonchitis
MNPS Threat Rank
Leaves erect, 5–60 cm long. Leaf blade nearly linear. Pinnae rarely overlapping, broadly lanceolate to mitten-shaped, 5–30 mm long with spreading-spiny margins. Indusium with jagged margins (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
In MT across the western two-thirds of the state; AK to Greenland south to CA, AZ, CO, WI, and QC (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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- Additional ReferencesLegend: View Online Publication
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- Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.