L.
Identity
Unique IDELEMENT_GLOBAL.2.129053
Element CodePMLIL1A0L0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderLiliales
FamilyLiliaceae
GenusLilium
Other Common NamesLis de Philadelphie (FR) Red Lily (EN) Red Wood Lily (EN) wood 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 CommentsFNA (vol. 26, 2002) lumps subspecific taxa.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-09-19
Change Date1984-06-07
Edition Date2024-09-19
Edition AuthorsN. Ventrella (2024)
Threat ImpactUnknown
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank ReasonsLilium philadelphicum is a perennial herb occurring in tallgrass prairies, open woodlands, thickets, roadsides, powerlines, grassy balds, barrens, dunes, heathlands, and moist to wet mountain meadows of eastern North America from British Columbia east to Quebec, Canada, and Maine south to Georgia, west to New Mexico, and north to Montana in the United States, excluding Kansas and Oklahoma east through Florida. This species is rare and in decline in parts of its range due to habitat loss and predation by white-tailed deer. Little is known about threats or trends, but with a large range extent, a high number of occurrences, abundant habitat, broad habitat preferences, and no obvious intrinsic vulnerabilities, Lilium philadelphicum is considered secure.
Range Extent CommentsLilium philadelphicum occurs in eastern North America, from British Columbia east to Quebec, Canada, and Maine south to Georgia, west to New Mexico, and north to Montana in the United States, excluding Kansas and Oklahoma east through Florida (FNA 2002). Range extent was estimated to be 7.4 million square kilometers using herbarium specimens, photo-based observations, and NatureServe Network occurrence data collected between 1993 and 2024 (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Occurrences CommentsBy applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1993 and 2024, it is estimated that there are more than 3,000 occurrences rangewide (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Threat Impact CommentsLilium philadelphicum has declined rapidly in the Northeast due to the loss of prairie habitats to development and agriculture as well as predation by white-tailed deer (FNA 2002). Succession due to fire suppression is also a concern, and in many places in the east, populations persist in powerline rights-of-ways that are maintained by brush-clearing. Logging, invasive species, and collection from the wild for ornamental purposes are also potential threats (NatureServe 2024)