L.
Identity
Unique IDELEMENT_GLOBAL.2.158614
Element CodePMLIL1A0P0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderLiliales
FamilyLiliaceae
GenusLilium
Other Common Namesturk's-cap lily (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 CommentsDistinct species.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-06-28
Change Date1990-09-18
Edition Date2024-06-28
Edition AuthorsMorse, L. and rev. E. Roth, rev. N. Ventrella (2024)
Threat ImpactUnknown
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences> 300
Rank ReasonsLilium superbum is a widespread herb occurring in swamps, moist meadows, balds, pine barrens, roadsides, and gaps in woods in eastern North America from New Hampshire west to Missouri and south to Louisiana and Florida in the United States. Threats include logging, conversion to pasture, invasive species, rights-of-way maintenance activities, deer browse, recreation (including off-road vehicles), oil and gas development, collection for cultivation, and other threats in some places. Little is known about trends, but with a large range extent, and over 300 occurrences, this species is considered secure.
Range Extent CommentsLilium superbum occurs in eastern North America from New Hampshire west to Missouri and south to Louisiana and Florida in the United States (FNA 2002), and it is primarily a southern Appalachian and northern Atlantic Coastal Plain species (Weakley and the Southeastern Flora Team 2024). A single report from Vermont (F.C. Seymour 1993), remains unconfirmed (FNA 2002). Range extent was estimated to be 1.4 million square kilometers using herbarium specimens and photo-based observations documented between 1993 and 2024 (GBIF 2024, iNaturalist 2024, SEINet 2024).
Occurrences CommentsBy applying a 1 km separation distance to herbarium specimens and photo-based observations documented between 1993 and 2024, it is estimated that there are more than 1,000 occurrences rangewide (GBIF 2024, iNaturalist 2024, SEINet 2024). However, this taxon is commonly cultivated, and iNatualist observations (>3,000) were not evaluated for evidence of cultivation (iNaturalist 2024).
Threat Impact CommentsAlthough threats are not widely documented, this species is threatened by logging, conversion to pasture, invasive species, rights-of-way maintenance activities, deer browse, recreation (including off-road vehicles), oil and gas development, collection for cultivation, and other threats in some places (NatureServe 2024). However, their overall impact is likely negligible given species' broad range, large number of occurrences, and tolerance of light disturbance, as well as no obvious intrinsic vulnerabilities.