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Draba glabella

Pursh

Rock Whitlow-grass

G5Secure Found in 1 roadless area NatureServe Explorer →
G5SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.149778
Element CodePDBRA11100
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderCapparales
FamilyBrassicaceae
GenusDraba
Other Common Names
Drave glabre (FR) Smooth Draba (EN) Smooth Whitlowgrass (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
Flora of North America (vol. 7, 2010) lumps subspecific taxa.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-05-16
Change Date2012-03-07
Edition Date2024-05-16
Edition AuthorsSoteropoulos (2024)
Threat ImpactUnknown
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
Draba glabella is a wide-ranging perennial herb with a circumboreal distribution including northern Europe, eastern Asia, Canada, and Maine, Michigan, and Vermont in the United States. Threats include development, succession, recreational activities, and invasive species. With a large range extent and number of occurrences, abundant habitat, broad habitat preferences, and no obvious intrinsic vulnerabilities, this species is considered secure.
Range Extent Comments
Draba glabella has a circumboreal distribution including northern Europe (northern Russia), eastern Asia (Russian Far East and Siberia), Canada (except Saskatchewan), and Maine, Michigan, and Vermont in the United States (FNA 2010).
Occurrences Comments
By applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1983 and 2024, it is estimated that there are over 1,000 occurrences rangewide (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Threat Impact Comments
Although threats are not widely documented, this species is threatened by development, succession, recreational activities, invasive species, and other threats in some places, though there is insufficient data, including anecdotal accounts, to understand scope and severity of threats for this species.
Ecology & Habitat

Habitat

Draba glabella grows in "rock outcrops, talus, rocky ridges and knolls, meadows, tundra, gravelly beaches, sandy river margins, disturbed soils" (FNA 2010).
Terrestrial Habitats
Grassland/herbaceousTundraSand/duneBare rock/talus/scree
Other Nations (2)
United StatesN5
ProvinceRankNative
New YorkS1Yes
WyomingSHYes
MichiganS1Yes
VermontS1Yes
WisconsinSNRYes
MaineS1Yes
AlaskaSNRYes
CanadaN5
ProvinceRankNative
OntarioS4Yes
ManitobaS2Yes
Northwest TerritoriesS4Yes
NunavutS5Yes
Island of NewfoundlandS3Yes
New BrunswickS1Yes
QuebecS5Yes
AlbertaSUYes
LabradorS3Yes
British ColumbiaS2Yes
Yukon TerritoryS5Yes
Nova ScotiaS1Yes
Threat Assessments
ThreatScopeSeverityTiming
Unknown/undetermined———

—

Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (1)
Alaska (1)
AreaForestAcres
Hoonah SoundTongass National Forest79,764
References (6)
  1. Flora of North America Editorial Committee (FNA). 2010. Flora of North America north of Mexico. Vol. 7. Magnoliophyta: Salicaceae to Brassicaceae. Oxford University Press, New York. xxii + 797 pp.
  2. Global Biodiversity Information Facility (GBIF). 2024. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2024).
  3. iNaturalist. 2024. Online. Available: https://www.inaturalist.org (accessed 2024).
  4. 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.
  5. NatureServe. 2024. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  6. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).