Roadless Areas
Home/Species/ Hyssop Skullcap

Scutellaria integrifolia

L.

Hyssop Skullcap

G5Secure Found in 17 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.155183
Element CodePDLAM1U0N0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderLamiales
FamilyLamiaceae
GenusScutellaria
Other Common Names
helmet flower (EN) Helmet-flower (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 Date2024-04-01
Change Date1985-04-10
Edition Date2024-04-01
Edition AuthorsSoteropoulos (2024)
Threat ImpactUnknown
Range Extent200,000 to >2,500,000 square km (about 80,000 to >1,000,000 square miles)
Number of Occurrences> 300
Rank Reasons
Scutellaria integrifolia is a wide-ranging perennial herb occurring in the eastern and south central United States from Massachusetts south to Florida and west to eastern Texas, northward in the interior to Oklahoma east to Ohio. It is considered to be common throughout most of its range, with more than 750 occurrences in wet pine savannas, pine flatwoods, bottomlands, and ditches. Threats include development, rights-of-way maintenance activities, silvicultural activities, deer browse, recreational activities, and invasive species. Little is known about trends, but with a large range extent and large number of occurrences, this species is considered secure.
Range Extent Comments
Scutellaria integrifolia occurs in eastern and south central United States from Massachusetts (possibly extirpated) south to Florida and west to eastern Texas, northward in the interior to Oklahoma (possibly extirpated) east to Kentucky and Ohio. Range extent was estimated to be about 1.9 million square kilometers using herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented 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 over 750 occurrences rangewide (GBIF 2024, iNaturalist 2024, NatureServe 2024, SEINet 2024).
Threat Impact Comments
Although threats are not widely documented, Scutellaria integrifolia is threatened by development, rights-of-way maintenance activities, silvicultural activities, deer browse, 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

Scutellaria integrifolia grows in "wet pine savannas, pine flatwoods, seeps in forests, bottomlands, other moist sites, ditches" (Weakley and the Southeastern Flora Team 2023).
Terrestrial Habitats
Forest - MixedWoodland - ConiferWoodland - MixedSavanna
Other Nations (1)
United StatesN5
ProvinceRankNative
TexasSNRYes
LouisianaSNRYes
West VirginiaS4Yes
DelawareS4Yes
FloridaSNRYes
MassachusettsS1Yes
OhioS3Yes
KentuckyS4Yes
ConnecticutS1Yes
GeorgiaS5Yes
OklahomaSHYes
TennesseeSNRYes
New YorkS1Yes
South CarolinaS5Yes
AlabamaSNRYes
MississippiSNRYes
VirginiaS5Yes
North CarolinaS5Yes
District of ColumbiaSNRYes
MarylandSNRYes
ArkansasSNRYes
MissouriSNRYes
New JerseyS4Yes
PennsylvaniaS5Yes
Threat Assessments
ThreatScopeSeverityTiming
Unknown/undetermined———

—

Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (17)
Alabama (1)
AreaForestAcres
Blue MountainTalladega National Forest4,986
Florida (3)
AreaForestAcres
Gum BayApalachicola National Forest11,645
Long BayApalachicola National Forest5,726
SavannahApalachicola National Forest1,927
Georgia (3)
AreaForestAcres
Ben GapChattahoochee National Forest1,292
Indian Grave GapChattahoochee National Forest1,020
Rocky MountainChattahoochee National Forest4,269
North Carolina (4)
AreaForestAcres
Catfish Lake NorthCroatan National Forest11,299
Catfish Lake South - ACroatan National Forest217
Laurel MountainPisgah National Forest5,683
Sheep Ridge AdditionCroatan National Forest5,808
South Carolina (1)
AreaForestAcres
Wambaw ExtFrancis Marion National Forest527
Tennessee (1)
AreaForestAcres
Flint Mill GapCherokee National Forest9,494
Texas (1)
AreaForestAcres
Little Lake CreekNational Forests in Texas596
Virginia (3)
AreaForestAcres
Little Walker MountainJefferson National Forest9,818
Northern MassanuttenGeorge Washington National Forest9,444
Peters Mountain Addition BJefferson National Forest2,909
References (6)
  1. Global Biodiversity Information Facility (GBIF). 2024. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2024).
  2. iNaturalist. 2024. Online. Available: https://www.inaturalist.org (accessed 2024).
  3. 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.
  4. NatureServe. 2024. NatureServe Network Biodiversity Location Data. NatureServe, Arlington, Virginia.
  5. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).
  6. 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.