Scutellaria integrifolia L.
Helmet-flower, Rough Skullcap, Common Large Skullcap, Tall Skullcap
Lamiaceae (Mint Family)
Synonym(s): Scutellaria incana ssp. hispida, Scutellaria integrifolia var. hispida
USDA Symbol: SCIN2
Scutellaria integrifolia grows 1-2 feet tall, is usually branched near the base and has erect stems. Leaves are opposite. Those near the bottom are often coarsely toothed, 1/3-1 1/4 inches long; upper leaves are untoothed, narrower, and up to 2 inches long. The bluish-lavender, 2-lipped flowers are clustered or solitary in the axils of bract-like upper leaves, together forming an elongated cluster along the finely hairy square stem.
The many different Skullcaps are recognized by the tiny projection, or hump, on the top of the calyx surrounding the base of the flower.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Arrangement: Opposite
Fruit Type: Nut
Size Notes: Grows 1-2 feet tall.
Fruit: Black nutlets.
Bloom InformationBloom Color: White , Pink , Blue
Bloom Time: May , Jun , Jul
DistributionUSA: AL , AR , CT , DC , DE , FL , GA , KY , LA , MA , MD , MO , MS , NC , NJ , NY , OH , OK , PA , SC , TN , TX , VA , WV
Native Distribution: New England and New York south to Florida; west to Alabama and Missouri; north to Kentucky and Ohio.
Native Habitat: Clearings, open woods.
Growing ConditionsLight Requirement: Sun
Soil Moisture: Wet
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Crosby Arboretum - Picayune, MS
BibliographyBibref 1620 - Gardening with Native Plants of the South (Reprint Edition) (2009) Wasowski, S. with A. Wasowski
Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
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Web ReferenceWebref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Research LiteratureReslit 702 - Mycorrhizal fungi and growth and development of micropropagated Scutellaria integrifolia plants (2007) N. Joshee, S. R. Mentreddy and A. K. Yadav
This information was provided by the Florida WIldflower Foundation.
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Additional resourcesUSDA: Find Scutellaria integrifolia in USDA Plants
FNA: Find Scutellaria integrifolia in the Flora of North America (if available)
Google: Search Google for Scutellaria integrifolia
MetadataRecord Modified: 2023-04-07
Research By: TWC Staff