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Allium allegheniense

Small

Allegheny Onion

G3Vulnerable (G3?) Found in 1 roadless area NatureServe Explorer →
G3VulnerableGlobal Rank
Allegheny Onion (Allium allegheniense). Photo by masteralgae, CC0 1.0, via iNaturalist.
masteralgae, CC0 1.0
Allegheny Onion (Allium allegheniense). Photo by Anne S, CC BY 4.0, via iNaturalist.
Anne S, CC BY 4.0
Allegheny Onion (Allium allegheniense). Photo by Lauren Bosch, CC0 1.0, via iNaturalist.
Lauren Bosch, CC0 1.0
Allegheny Onion (Allium allegheniense). Photo by Seb H, CC BY 4.0, via iNaturalist.
Seb H, CC BY 4.0
Identity
Unique IDELEMENT_GLOBAL.2.161170
Element CodePMLIL02300
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderAsparagales
FamilyAmaryllidaceae
GenusAllium
Other Common Names
Allegheny onion (EN)
Concept Reference
Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
Taxonomic Comments
Recognized as distinct from Allium cernuum by Kartesz in his 1999 Floristic Synthesis and by Weakley (2023). In contrast, FNA (vol. 26, 2002) included Allium allegheniense in A. cernuum.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2002-10-10
Change Date1998-05-27
Edition Date2016-06-29
Edition AuthorsOlivero, A., rev. Amoroso, J. (2016)
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences1 - 5
Rank Reasons
Uncommon in its known range of western North Carolina, western Virginia, and eastern West Virginia, with historical records from northern Georgia and eastern Tennessee. Occurs in thin soils around mafic or calcareous rock outcrops.
Range Extent Comments
Originally described from Virginia to North Carolina, Tennessee, and Georgia, the species has also been found in eastern West Virginia; possibly more widespread.
Occurrences Comments
Extant occurrences present in North Carolina and Virginia.
Ecology & Habitat
Other Nations (1)
United StatesN3
ProvinceRankNative
VirginiaS1Yes
North CarolinaS1Yes
West VirginiaS2Yes
Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)Yes
Roadless Areas (1)
Virginia (1)
AreaForestAcres
Little AlleghanyGeorge Washington National Forest10,215
References (4)
  1. Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
  2. Small, J.K. 1899. Undescribed plants of the Southern United States. Bulletin of the NewYork Botanical Garden. 1(4):278-280.
  3. Weakley, A.S. 2000. Flora of the Carolinas and Virginia: working draft of May 15, 2000. Unpublished draft, The Nature Conservancy, Southern Resource Office.
  4. Weakley, A.S., and Southeastern Flora Team. 2023. Flora of the southeastern United States. Edition of April 14, 2023. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina, Chapel Hill. 2105 pp.