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Deparia acrostichoides

(Sw.) M. Kato

Silver False Spleenwort

G5Secure Found in 27 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.135165
Element CodePPDRY08010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumFilicinophyta
ClassFilicopsida
OrderPolypodiales
FamilyAthyriaceae
GenusDeparia
Synonyms
Athyrium thelypterioides(Michx.) Desv.Diplazium acrostichoides(Sw.) Butters
Other Common Names
Athyrie fausse-thélyptère (FR) silver false spleenwort (EN) Silvery Glade Fern (EN) Silvery Spleenwort (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
The generic placement of this taxon is in accordance with the Pteridophyte Phylogeny Group I (2016).
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-07-19
Change Date1986-11-18
Edition Date2024-07-19
Edition AuthorsEberly (2024)
Threat ImpactUnknown
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
Deparia acrostichoides is a wide ranging fern of the eastern United States and southeastern Canada. With a large range extent, over 700 occurrences, and broad habitat preferences for abundant habitat, this species is considered secure.
Range Extent Comments
Deparia acrostichoides occurs in southeastern Canada south to northern South Carolina, Georgia, Alabama, and Arkansas in the U.S.A (Weakley and Southeastern Flora Team 2024) Range extent was estimated using herbarium specimens and photo-based observations documented between 1993 and 2024 (GBIF 2024, iNaturalist 2024, SEINet 2024).
Occurrences Comments
By applying a 1 km separation distance to herbarium records and photo-based observations documented between 1993 and 2024, there are estimated to be over 700 occurrences rangewide (GBIF 2024, iNaturalist 2024, SEINet 2024).
Threat Impact Comments
Although threats are not well documented, this species is threatened by logging, livestock grazing, and likely other threats in some places (NatureServe 2024). There is insufficient data, including anecdotal accounts, to understand the scope and severity of threats for this taxon. However, their overall impact is likely negligible given the species' broad range, large number of occurrences, and affinity for typically abundant habitats.
Ecology & Habitat

Habitat

This species grows in moist forests that are often rich and rocky, including cove forests (Native Plant Trust 2024, Weakley and Southeastern Flora Team 2024).
Terrestrial Habitats
Forest/Woodland
Other Nations (2)
CanadaN5
ProvinceRankNative
Prince Edward IslandS3Yes
New BrunswickS4Yes
QuebecS4Yes
OntarioS4Yes
Nova ScotiaS4Yes
United StatesN5
ProvinceRankNative
IowaS3Yes
District of ColumbiaSNRYes
VirginiaS4Yes
WisconsinSNRYes
KentuckyS5Yes
OhioSNRYes
New HampshireSNRYes
AlabamaS4Yes
LouisianaS2Yes
GeorgiaSNRYes
New JerseyS5Yes
West VirginiaS5Yes
MarylandSNRYes
MississippiS1Yes
IndianaSNRYes
ConnecticutSNRYes
MissouriSNRYes
MassachusettsSNRYes
PennsylvaniaS5Yes
New YorkS5Yes
TennesseeSNRYes
ArkansasSNRYes
MichiganSNRYes
VermontS5Yes
South CarolinaS3Yes
DelawareS4Yes
Rhode IslandS2Yes
MaineSNRYes
IllinoisS5Yes
North CarolinaS5Yes
MinnesotaS3Yes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquacultureUnknownUnknownUnknown
2.3 - Livestock farming & ranchingUnknownUnknownUnknown
2.3.4 - Scale unknown/unrecordedUnknownUnknownUnknown
5 - Biological resource useUnknownUnknownUnknown
5.3 - Logging & wood harvestingUnknownUnknownUnknown
5.3.5 - Motivation unknown/unrecordedUnknownUnknownUnknown

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Plant Characteristics
DurationDECIDUOUS
Economic Value (Genus)No
Roadless Areas (27)
Arkansas (1)
AreaForestAcres
Clifty CanyonOzark-St. Francis National Forest1,963
Georgia (1)
AreaForestAcres
Ellicott Rock AdditionChattahoochee National Forest690
Kentucky (1)
AreaForestAcres
WolfpenDaniel Boone National Forest2,835
Michigan (1)
AreaForestAcres
Norwich Plains Revised Roadless AreaOttawa National Forest4,360
New Hampshire (2)
AreaForestAcres
Dartmouth RangeWhite Mountain National Forest9,233
Great Gulf Ext.White Mountain National Forest15,110
North Carolina (6)
AreaForestAcres
Bald MountainPisgah National Forest11,085
Cheoah BaldNantahala National Forest7,795
Craggy MountainPisgah National Forest2,657
Graveyard Ridge (addition)Pisgah National Forest1,958
Middle Prong AdditionPisgah National Forest1,852
Yellowhammer Branch (add.)Nantahala National Forest1,255
Tennessee (1)
AreaForestAcres
Bald MountainCherokee National Forest11,743
Vermont (1)
AreaForestAcres
Griffith Lake 09084Green Mountain and Finger Lakes National Forests1,833
Virginia (5)
AreaForestAcres
Elliott KnobGeorge Washington National Forest9,380
Little RiverGeorge Washington National Forest27,292
New London Bridge BranchJefferson National Forest844
Seng MountainJefferson National Forest6,428
Three RidgesGeorge Washington National Forest4,745
West Virginia (8)
AreaForestAcres
Cranberry AdditionMonongahela National Forest11,123
Cranberry Glades Botanical AreaMonongahela National Forest785
Dry ForkMonongahela National Forest657
Falls Of Hills CreekMonongahela National Forest6,925
Gauley MountainMonongahela National Forest13,285
Mcgowan MountainMonongahela National Forest10,504
Middle MountainMonongahela National Forest19,020
Turkey MountainMonongahela National Forest6,421
References (9)
  1. Flora of North America Editorial Committee (FNA). 1993a. Flora of North America north of Mexico. Vol. 2. Pteridophytes and gymnosperms. Oxford Univ. Press, New York. xvi + 475 pp.
  2. Global Biodiversity Information Facility (GBIF). 2024. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2024).
  3. iNaturalist. 2024. Online. Available: https://www.inaturalist.org (accessed 2024).
  4. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  5. Native Plant Trust. 2024. Go Botany website. Online. Available: https://gobotany.newenglandwild.org (accessed 2024).
  6. NatureServe. 2024. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  7. Pteridophyte Phylogeny Group I. 2016. A Community-Derived Classification for Extant Lycophytes and Ferns. Journal of Systematics and Evolution 54(6): 563–603.
  8. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).
  9. Weakley, A.S., and Southeastern Flora Team. 2024. Flora of the southeastern United States. Edition of March 4, 2024. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina, Chapel Hill. 2203 pp.