(Rydb.) Rydb.
Identity
Unique IDELEMENT_GLOBAL.2.144572
Element CodePMORC2B0M0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
CITESAppendix II
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderOrchidales
FamilyOrchidaceae
GenusSpiranthes
Other Common NamesSpiranthe jaunâtre (FR) Yellow Ladies'-tresses (EN) yellow nodding ladies'-tresses (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.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-10-17
Change Date2024-10-17
Edition Date2024-10-17
Edition AuthorsN. 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 ReasonsSpiranthes ochroleuca is a perennial orchid occurring in woodlands, thickets, meadows, old fields, barrens, outcrops, ledges, and roadsides of eastern North America from Ontario, Newbrunswick, and Nova Scotia, Canada south to South Carolina, west to Tennessee, and north to Michigan in the United States. It is threatened by rights-of-way construction and maintenance, logging, recreation, development, deer browse, succession, illegal dumping, and other threats in some places. Little is known about trends, but with a large range extent and over 700 occurrences, this species is considered secure.
Range Extent CommentsSpiranthes ochroleuca occurs in eastern North America from Ontario, Newbrunswick, and Nova Scotia, Canada south to South Carolina, west to Tennessee, and north to Michigan in the United States (FNA 2002). Range extent was estimated to be 1.6 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 700 occurrences rangewide (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Threat Impact CommentsAlthough threats are not widely documented, Spiranthes ochroleuca is threatened by rights-of-way construction and maintenance, logging, recreation, development, deer browse, succession, illegal dumping, and 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, tolerance of light disturbance, and affinity for typically abundant habitats, as well as no obvious intrinsic vulnerabilities.