Plant Index


 
 
 

Dryopteris intermedia

Dryopteris intermedia (Muhl. ex Willd.) A. Gray

evergreen wood-fern, fancy fern, intermediate woodfern

Synonym(s): Dryopteris austriaca var. intermedia, Dryopteris spinulosa var. concordiana, Dryopteris spinulosa var. intermedia
Dryopteris intermedia (Evergreen Wood-fern)
Image ID: 12931
Image by: Cressler, Alan M.
Image Collection: NCBG Digital Library

PLANT INDEX

ID_PLANT: DRIN5
SCIENTIFIC NAME: Dryopteris intermedia
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2020-01-01

GENUS INDEX

GENUS CODE: DRYOP
GENUS SCIENTIFIC: Dryopteris
GENUS AUTHORITY: Adans.
GENUS COMMON: Woodfern
GENUS SUMMARY: A genus of about 400 species, nearly cosmopolitan, but concentrated in temperate Asia. Sessa, Zimmer, & Givnish (2012) discuss the phylogeny and biogeography of Dryopteris; the clades shown in the key are from their work.
GENUS IDENTIFICATION: Identification notes: Dryopteris and Athyrium are often confused when not fertile; they can be easily distinguished by breaking off a leaf and counting vascular bundles (which will appear as thread-like strands). Dryopteris has 5 and Athyrium has 2. Many Dryopteris species will hybridize with one another to form sterile hybrids. Whenever two or more Dryopteris species are found growing together, there is a good chance that hybrids are present. Hybrids generally show intermediacy between the two parents, and have abortive sporangia or spores.
GENUS REFERENCES: Montgomery & Wagner in FNA (1993b); Sessa, Zimmer, & Givnish (2012); Montgomery & Paulton (1981); Montgomery (1982); Kramer et al. in Kramer & Green (1990); Hoshizaki & Wilson (1999).

FAMILY INDEX

FAMILY CODE: DRYOPT
FAMILY SCIENTIFIC: Dryopteridaceae
FAMILY AUTHORITY: Ching 1965
FAMILY COMMON: Wood-fern Family
FAMILY SUMMARY: A family of about 40-45 genera and 1700 species, cosmopolitan in distribution, but concentrated in temperate and montane areas. Here circumscribed (following Smith et al. 2006) to exclude Onocleaceae and Woodsiaceae.
FAMILY REFERENCE: Smith in FNA (1993b); Smith et al. (2006); Lellinger (1985); Kramer et al. in Kramer & Green (1990).

NCBG DESCRIPTIVES

INTRO:
STEMS:
LEAVES:
INFLORESCENCE:
FLOWERS:
FRUITS:
COMMENTS:
HEIGHT:

DURATION: Perennial
HABIT: Herb, Fern

LEAF ARRANGEMENT:
LEAF COMPLEXITY: Bi-pinnate
LEAF RETENTION: Evergreen

FLORAL CHARACTERISTICS
SYMMETRY:
BLOOM TIME: Jun-Sep
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
x x x x

BLOOM COLOR:
White Red Pink Orange Yellow Green Blue Lavender Purple Violet Brown Not Applicable
x

FRUITING PERIOD:

DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: eastern North America

HORTICULTURAL
Plant Sale Text:

Bloom Table Text:

NCBG Location:

Cultural Notes:

SOIL MOISTURE: Dry, Average
LIGHT EXPOSURE: Part Shade, Shade
MINIMUM HARDINESS ZONE:
MAXIMUM HARDINESS ZONE:
GERMINATION CODE:
WILDLIFE VALUE:
DEER RESISTANCE:

GRIM ACCESSIONS

acc_id acc_num acc_dt coll_id Action
967 1985-0660 View
3410 1991-0041 View
5106 1995-0225 View



GRIM PLANTINGS

plt_num acc_id loc_num pers_num inst_dt Action
1790 967 11 NCBG staff 1985-02-20 View
1791 967 76 NCBG staff 1985-02-20 View
1792 967 78 NCBG staff 1985-02-20 View
1793 967 145 NCBG staff 1985-02-20 View
1794 967 189 NCBG staff 1985-02-20 View
5650 3410 11 NCBG staff 1967-12-31 View
7528 5106 203 NCBG staff 1992-01-01 View

USDA PLANTS DATABASE

USDA Symbol: DRIN5
USDA Common Name: Intermediate Woodfern
Native Status: L48 (N), CAN (N), SPM (N)
Distribution: USA (AL, CT, DC, DE, GA, IA, IL, IN, KY, MA, MD, ME, MI, MN, MO, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WI, WV), CAN (NB, NF, NS, ON, PE, QC), FRA (SPM)
Duration: Perennial
Growth Habit: Forb/herb

NATIONAL WETLAND INDICATOR STATUS

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACU FACU FAC FAC

This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast

2018 Natural Heritage Program List of Rare Plant Species of North Carolina

NHP IDS RANKROUNDED S RANKG RANKROUNDED G RANKSTATE STATUSFEDERAL STATUS
20966 S5 S5 G5 G5 W6

This information is derived from the 2018 North Carolina Natural Heritage Program List of Rare Plant Species.

WEAKLEY FLORA

SCIENTIFIC NAME: Dryopteris intermedia
COMMON NAME: Fancy Fern, Evergreen Wood-fern
SYNONYMY: [= C, FNA, Il, K, Pa, RAB, S, Tn, Va, W, WV; = D. spinulosa (O.F. Mueller) Watt var. intermedia (Muhlenberg ex Willdenow) Underwood - F; = D. austriaca (Jacquin) Woynar ex Schinz & Thellung var. intermedia (Muhlenberg ex Willdenow) Morton - G]
PHENOLOGY: Jun-Sep.
HABITAT: Cove forests, other moist, rocky forests, over a variety of substrates.
COMMENTS: NL (Newfoundland) west to MN, south to n. GA and s. MO. 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 D. campyloptera and D. carthusiana.
RANGE MAP: Dryopteris intermedia.png

Key to Map Symbols
ABOUT FAMILY (Weakley Flora)
Dryopteridaceae Ching 1965 (Wood-fern Family)
SUMMARY: A family of about 40-45 genera and 1700 species, cosmopolitan in distribution, but concentrated in temperate and montane areas. Here circumscribed (following Smith et al. 2006) to exclude Onocleaceae and Woodsiaceae.
REFERENCE: Smith in FNA (1993b); Smith et al. (2006); Lellinger (1985); Kramer et al. in Kramer & Green (1990).
ABOUT GENUS (Weakley Flora)
Dryopteris Adans. (Woodfern)
SUMMARY: A genus of about 400 species, nearly cosmopolitan, but concentrated in temperate Asia. Sessa, Zimmer, & Givnish (2012) discuss the phylogeny and biogeography of Dryopteris; the clades shown in the key are from their work.
REFERENCE: Montgomery & Wagner in FNA (1993b); Sessa, Zimmer, & Givnish (2012); Montgomery & Paulton (1981); Montgomery (1982); Kramer et al. in Kramer & Green (1990); Hoshizaki & Wilson (1999).

HERBARIUM RESOURCES

SERNEC: Find Dryopteris intermedia in Southeast Regional Network of Experts and Collections (if available)
UNC SERNEC: Find Dryopteris intermedia in University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)

WEB RESOURCES

USDA: Find Dryopteris intermedia in USDA Plants
NPIN: Find Dryopteris intermedia in NPIN Database
FNA: Find Dryopteris intermedia in the Flora of North America (if available)
Google: Search Google for Dryopteris intermedia

NCBG IMAGE RECORDS

ID IMAGE1: 12931
ID IMAGE2: 12931
ID IMAGE3: 0

From the Image Gallery


Image ID: 36937
2 photo(s) available in the Image Gallery

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