(L.) B.S.P.
Identity
Unique IDELEMENT_GLOBAL.2.155256
Element CodePPASP02110
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumFilicinophyta
ClassFilicopsida
OrderFilicales
FamilyAspleniaceae
GenusAsplenium
Other Common NamesDoradille ébène (FR) ebony spleenwort (EN)
Concept ReferenceKartesz, 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 CommentsThe treatment of Asplenium platyneuron in Weakley et al. (2024) finds that var. bacculum-rubrum and var. incisum are probably not worthy of taxonomic recognition. Flora of North America (vol. 2, 1993) also includes them in synonymy.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2023-09-26
Change Date1984-01-19
Edition Date2023-09-26
Edition AuthorsGeoffrey Hall (1998), rev. C. Nordman (2023).
Threat ImpactLow
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank ReasonsEbony Spleenwort (Asplenium platyneuron) occurs in eastern North America, with disjunct occurrences in New Mexico, Arizona, South Africa, and Slovakia. Range extent was estimated to be 32 million square kilometers, and there are estimated to be more than 5000 occurrences, including on various National Forests, National Parks, National Wildlife Refuges, State Parks, State Wildlife Management Areas, and other conservation lands. It is an ecological generalist and is particularly characteristic of disturbed woodlands.
Range Extent CommentsEbony Spleenwort (Asplenium platyneuron) occurs in eastern North America, from New Brunswick, Maine, southern Quebec and southern Ontario, west to southeastern Minnesota, eastern Kansas, and south to Florida and central Texas, with disjunct occurrences in New Mexico, Arizona, South Africa, and Slovakia. Range extent was estimated to be 32 million square kilometers, using herbarium specimens and photo-based observations documented between 1992 and 2023 (Flora of North America Editorial Committee 1993, GBIF 2023, iNaturalist 2023, Weakley and Southeastern Flora Team 2023).
Occurrences CommentsBy applying a 1 km separation distance to herbarium specimens, and photo-based observations data documented between 1992 and 2023, it is estimated that there are over 5000 occurrences rangewide (GBIF 2023, iNaturalist 2023).
Threat Impact CommentsFragmentation and loss of habitat due to development is a threat, but with low impact overall.