Micranthes petiolaris

(Rafinesque) Bush

Michaux's Saxifrage

G4Apparently Secure (G4G5) Found in 31 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Michaux's Saxifrage (Micranthes petiolaris). Photo by Joey Santore, CC BY-NC 4.0, via iNaturalist.
Joey Santore, CC BY-NC 4.0
Michaux's Saxifrage (Micranthes petiolaris). Photo by Joey Santore, CC BY-NC 4.0, via iNaturalist.
Joey Santore, CC BY-NC 4.0
Michaux's Saxifrage (Micranthes petiolaris). Photo by Joey Santore, CC BY-NC 4.0, via iNaturalist.
Joey Santore, CC BY-NC 4.0
Michaux's Saxifrage (Micranthes petiolaris). Photo by Joey Santore, CC BY-NC 4.0, via iNaturalist.
Joey Santore, CC BY-NC 4.0
Michaux's Saxifrage (Micranthes petiolaris). Photo by Joey Santore, CC BY-NC 4.0, via iNaturalist.
Joey Santore, CC BY-NC 4.0
Michaux's Saxifrage (Micranthes petiolaris). Photo by Joey Santore, CC BY-NC 4.0, via iNaturalist.
Joey Santore, CC BY-NC 4.0
Michaux's Saxifrage (Micranthes petiolaris). Photo by grinnin, CC BY-NC 4.0, via iNaturalist.
grinnin, CC BY-NC 4.0
Identity
Unique IDELEMENT_GLOBAL.2.146463
Element CodePDSAX0U0Z0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRosales
FamilySaxifragaceae
GenusMicranthes
Synonyms
Saxifraga michauxiiBritt.
Other Common Names
Cliff Saxifrage (EN) Michaux's saxifrage (EN)
Concept Reference
Kartesz, 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 Comments
FNA (vol. 8, 2009) transfers Saxifraga michauxii to Micranthes petiolaris.
Conservation Status
Review Date1983-10-11
Change Date1983-10-11
Threat Impact Comments
Highly threatened by land-use conversion, habitat fragmentation, and forest management practices; erosion resulting from forest harvest and changes in microclimate would be detrimental. (Southern Appalachian Species Viability Project 2002).
Ecology & Habitat
Other Nations (1)
United StatesN4
ProvinceRankNative
South CarolinaSNRYes
West VirginiaS1Yes
GeorgiaSNRYes
KentuckyS2Yes
VirginiaS4Yes
TennesseeSNRYes
North CarolinaSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (31)
Georgia (8)
AreaForestAcres
Boggs CreekChattahoochee National Forest2,073
Cedar MountainChattahoochee National Forest1,083
Helton CreekChattahoochee National Forest2,348
Joe GapChattahoochee National Forest5,321
Kelly RidgeChattahoochee National Forest8,325
Lance CreekChattahoochee National Forest9,025
Sarah's CreekChattahoochee National Forest6,888
Turner CreekChattahoochee National Forest1,495
North Carolina (17)
AreaForestAcres
Balsam ConePisgah National Forest10,591
BearwallowPisgah National Forest4,113
Big Indian (addition)Nantahala National Forest1,155
Chunky Gal (addition)Nantahala National Forest3,336
Craggy MountainPisgah National Forest2,657
Graveyard Ridge (addition)Pisgah National Forest1,958
Harper CreekPisgah National Forest7,325
Jarrett CreekPisgah National Forest7,485
Laurel MountainPisgah National Forest5,683
Lost CovePisgah National Forest5,944
Mackey MountainPisgah National Forest5,934
Middle Prong AdditionPisgah National Forest1,852
Overflow CreekNantahala National Forest3,379
Sam Knob (addition)Pisgah National Forest2,576
South Mills RiverPisgah National Forest8,588
Wesser BaldNantahala National Forest4,061
Wilson CreekPisgah National Forest4,863
South Carolina (1)
AreaForestAcres
Big MountainSumter National Forest2,337
Tennessee (1)
AreaForestAcres
Brushy RidgeCherokee National Forest7,469
Virginia (4)
AreaForestAcres
Adams PeakGeorge Washington National Forest7,135
Mt. PleasantGeorge Washington National Forest8,933
Raccoon BranchJefferson National Forest4,388
The PriestGeorge Washington National Forest5,737
References (4)
  1. Flora of North America Editorial Committee (FNA). 2009. Flora of North America north of Mexico. Vol. 8. Magnoliophyta: Paeoniaceae to Ericaceae. Oxford University Press, New York. xxiv + 585 pp.
  2. Kartesz, 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.
  3. Southern Appalachian Species Viability Project. 2002. A partnership between the U.S. Forest Service-Region 8, Natural Heritage Programs in the Southeast, NatureServe, and independent scientists to develop and review data on 1300+ regionally and locally rare species in the Southern Appalachian and Alabama region. Database (Access 97) provided to the U.S. Forest Service by NatureServe, Durham, North Carolina.
  4. Stubbs, R.L., D.E. Soltis, and N. Cellinese. 2018. The future of cold- adapted plants in changing climates: Micranthes (Saxifragaceae) as a case study. Ecology and Evolution 8:7164-7177.