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Corydalis flavula

(Raf.) DC.

Yellow Corydalis

G5Secure Found in 19 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.160044
Element CodePDFUM03070
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPapaverales
FamilyPapaveraceae
GenusCorydalis
Other Common Names
Corydale jaune pâle (FR) yellow fumewort (EN) Yellow Fumewort (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.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2024-09-18
Change Date1984-02-29
Edition Date2024-09-18
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 Reasons
Corydalis flavula is an annual forb occurring in woodlands, bottomlands, and rock outcrops of eastern North America from Ontario south to Nebraska and Louisiana, east to Florida, and north to New York in the United States and Canada. There are an estimated 1,900 occurrences of this species, which are likely threatened by hikers, all-terrain vehicles, invasive species, succession and fire suppression, logging, and deer browse. Little is known about rangewide threats or trends, but with a large range extent, a high number of occurrences, abundant habitat, broad habitat preferences, and no obvious intrinsic vulnerabilities, Corydalis flavula is considered secure.
Range Extent Comments
Corydalis flavula occurs in eastern North America, from Ontario south to Nebraska and Louisiana, east to Florida, and north to New York in the United States and Canada (FNA 1997). Range extent was estimated to be 1.9 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 Comments
By 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 1,900 occurrences rangewide (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Threat Impact Comments
Corydalis flavula is rare on the eastern edge of its range in New England, where it is threatened by hikers, all-terrain vehicles, and invasive species (Native Plant Trust 2024). Additional potential threats to this species include succession and fire suppression, logging, and deer browse (NatureServe 2024).
Ecology & Habitat

Habitat

Corydalis flavula occurs on "wooded slopes, bottomlands, and rock outcrops, in moist, loose soil" (FNA 1997). In the southeastern United States, it occurs in moist forests, glades, and on outcrops over mafic rocks (Weakley and the Southeastern Flora Team 2024). In New England, Corydalis flavula is restricted to open outcrops and summits of sub-acidic basalt ridges (Native Plant Trust 2024).
Terrestrial Habitats
Forest/WoodlandForest - HardwoodForest - MixedForest EdgeBarrensBare rock/talus/scree
Other Nations (2)
CanadaN1
ProvinceRankNative
OntarioS1Yes
United StatesN5
ProvinceRankNative
MichiganS2Yes
MississippiSNRYes
GeorgiaS2Yes
KentuckyS5Yes
DelawareS1Yes
South CarolinaSNRYes
IowaSNRYes
New JerseyS3Yes
FloridaSNRYes
New YorkS3Yes
South DakotaSNRYes
MarylandSNRYes
PennsylvaniaS5Yes
District of ColumbiaSNRYes
West VirginiaS5Yes
OhioSNRYes
IndianaSNRYes
VirginiaS5Yes
NebraskaS3Yes
ConnecticutS1Yes
KansasS3Yes
IllinoisSNRYes
MissouriSNRYes
North CarolinaS4Yes
ArkansasSNRYes
AlabamaSNRYes
TennesseeSNRYes
LouisianaS2Yes
OklahomaSNRYes
Threat Assessments
ThreatScopeSeverityTiming
6 - Human intrusions & disturbanceUnknownUnknownUnknown
6.1 - Recreational activitiesUnknownUnknownUnknown
8 - Invasive & other problematic species, genes & diseasesUnknownUnknownUnknown
8.1 - Invasive non-native/alien species/diseasesUnknownUnknownUnknown

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Plant Characteristics
DurationANNUAL
Economic Value (Genus)No
Roadless Areas (19)
Arkansas (3)
AreaForestAcres
Clifty CanyonOzark-St. Francis National Forest1,963
Dismal CreekOzark-St. Francis National Forest9,160
Gee CreekOzark-St. Francis National Forest7,957
Illinois (2)
AreaForestAcres
Bay CreekShawnee National Forest120
Ripple HollowShawnee National Forest3,788
North Carolina (1)
AreaForestAcres
Cheoah BaldNantahala National Forest7,795
Tennessee (1)
AreaForestAcres
Sampson Mountain AdditionCherokee National Forest3,064
Virginia (9)
AreaForestAcres
Adams PeakGeorge Washington National Forest7,135
James River AdditionJefferson National Forest1,140
Mill MountainGeorge Washington National Forest10,840
Mt. PleasantGeorge Washington National Forest8,933
North MountainJefferson National Forest8,377
Northern MassanuttenGeorge Washington National Forest9,444
Southern MassanuttenGeorge Washington National Forest11,985
The PriestGeorge Washington National Forest5,737
Three RidgesGeorge Washington National Forest4,745
West Virginia (3)
AreaForestAcres
Dolly Sods Roaring PlainMonongahela National Forest13,392
Middle MountainMonongahela National Forest19,020
North Mountain HopevilleMonongahela National Forest6,525
References (8)
  1. FNA Editorial Committee [Flora of North America Editorial Committee], editors. 1993. Flora of North America, north of Mexico. Volume 3. Magnoliophyta: Magnoliidae and Hamamelidae. Oxford University Press, New York. xxiii plus 590 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. Native Plant Trust. 2024. Go Botany website. Online. Available: https://gobotany.newenglandwild.org (accessed 2024).
  6. NatureServe. 2024. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  7. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).
  8. Weakley, A.S., and Southeastern Flora Team. 2024. Flora of the southeastern United States. Edition of March 4, 2024. University of North Carolina Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina, Chapel Hill. 2203 pp.