Trichostema dichotomum L.
Forked Bluecurls, Blue Curls
Lamiaceae (Mint Family)
Synonym(s): Trichostema dichotomum var. puberulum, Trichostema pilosum
USDA Symbol: TRDI2
A small plant with 2 or 3 blue, 2-lipped flowers at the tips of short branches arising from the leaf axils. Plant sticky.
The long, curled stamens characterize this dainty little plant. The southern Perennial Bluecurls (T. suffrutescens), has tiny oblong leaves and may not be a distinct species. False Pennyroyal (T. brachiatum) has short stamens not protruding from the flowers. It ranges from Quebec to Georgia, west to Texas, and north to Minnesota.
From the Image Gallery
Plant CharacteristicsDuration: Annual
Size Notes: Up to about 28 inches tall.
Bloom InformationBloom Color: White , Blue , Purple
Bloom Time: Aug , Sep , Oct
DistributionUSA: AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KY , LA , MA , MD , ME , MI , MO , MS , NC , NH , NJ , NY , OH , OK , PA , RI , SC , TN , TX , VA , VT , WV
Canada: ON , QC
Native Distribution: Southern Maine south to Florida; west to Texas; north to Missouri and Michigan.
Native Habitat: Dry, open, sandy, or sterile sites.
Growing ConditionsLight Requirement: Part Shade , Shade
Soil Moisture: Dry
Soil Description: Sandy
BenefitConspicuous Flowers: yes
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
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:
Naval Air Station Kingsville - Kingsville, TX
Web ReferenceWebref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resourcesUSDA: Find Trichostema dichotomum in USDA Plants
FNA: Find Trichostema dichotomum in the Flora of North America (if available)
Google: Search Google for Trichostema dichotomum
MetadataRecord Modified: 2023-04-07
Research By: TWC Staff