Brittle Bladder Fern - Cystopteris fragilis
MNPS Threat Rank
Leaves loosely clustered, glabrous or slightly glandular, 4–35 cm long, petiole shorter to slightly longer than the blade. Leaf blades narrowly elliptic to lanceolate, twice pinnate below. Pinnules deeply lobed with toothed margins. Indusium without glandular hairs (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
In MT nearly state-wide; cosmopolitan south to CA, NM, and NE (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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Dry to wet, shallow or stony soil, rock crevices on open slopes, forests, woodlands; all elevations (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
- 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.