Northern Oak Fern - Gymnocarpium dryopteris
Other Names:
Gymnocarpium disjunctum
Native Species
Global Rank:
G5
State Rank:
S4
C-value:
7
Agency Status
USFWS:
USFS:
BLM:
External Links
Plants with long, slender, scaly rhizomes. Leaves to 45 cm long, scattered, erect, petiole longer than blade. Leaf blade triangular, twice pinnate below but once above. Pinnae: lowest pair similar in size to the rest of blade. Pinnules pinnately lobed or toothed, glabrous or slightly glandular. Sori circular, borne on veins near margins on underside of fertile pinnules. Indusium lacking (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).