Dryopteris intermedia (Muhlenberg ex Willdenow) A. Gray. Fancy Fern, Evergreen Woodfern. Phen: Jun-Sep. Hab: Cove forests, other moist, rocky forests, over a variety of substrates. Dist: NL (Newfoundland) west to MN, south to n. GA and s. MO.
Origin/Endemic status: Native
Taxonomy Comments: This species is one of the diploid "parent species" of the e. North American reticulately-evolved Dryopteris complex. Its genome (symbolized II) forms half of the genome of the tetraploids Dryopteris campyloptera and Dryopteris carthusiana and 2/3s of the genome of the triploid hybrid Dryopteris ×triploidea (Dryopteris carthusiana × intermedia, with chromosome symbolized IIS), which is frequent in areas with both parents present.
Synonymy ⓘ: = C, FNA2, Il, K1, K3, K4, Mo1, NE, NY, Pa, RAB, S13, Sf, Tat, Tn, Va, W, WV, Montgomery & Paulton (1981); = Dryopteris austriaca (Jacq.) Woyn. ex Schinz & Thell. var. intermedia (Muhl. ex Willd.) Morton – G; = Dryopteris spinulosa (O.F.Müll.) Watt var. intermedia (Muhl. ex Willd.) Underw. – F
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACU
- Eastern Mountains and Piedmont: FACU
- Midwest: FAC
- Northcentral & Northeast: FAC
Heliophily ⓘ: 2
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.
© Alan Cressler: Dryopteris intermedia, Southern Appalachian Mountain Bog, North Carolina 1 by Alan Cressler source | Original Image ⭷
© Alan Cressler: Dryopteris intermedia, Chestnut Cove Boulder Field, Brasstown Bald, Brasstown Wilderness, Chattahoochee National Forest, Towns County, Georgia 4 by Alan Cressler source | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Alan Cressler: Dryopteris campyloptera (left), Dryopteris intermedia (right) , Big Frog Mountain, Big Frog Wilderness, Cherokee National Forest, Polk County, Tennessee 1 by Alan Cressler source | Original Image ⭷
© Alan Cressler: Dryopteris carthusiana (right), and Dryopteris intermedia (left), Southern Appalachian Mountain Bog, North Carolina 1 by Alan Cressler source | Original Image ⭷
© Keith Bradley | Original Image ⭷
© Alan M. Cressler | Original Image ⭷
© Alan Cressler: Dryopteris intermedia (top), Dryopteris intermedia X marginalis (middle), Dryopteris marginalis (bottom), Guess Creek, Jackson County, Alabama 1 by Alan Cressler source | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Alan Cressler: Dryopteris celsa (left), Dryopteris Xseparabilis (center), Dryopteris intermedia (right), Big Creek, Great Smoky Mountains National Park, Haywood County, North Carolina 1 by Alan Cressler source | Original Image ⭷Feedback
See something wrong or missing on about Dryopteris intermedia? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.
« show previous | back to original search ↑ | show next »
Cite as...