Contact Us Host an Event Volunteer Join

Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or choose a plant family:

Trichostema lanceolatum

Trichostema lanceolatum Benth.

Vinegar Weed, Vinegarweed

Lamiaceae (Mint Family)


USDA Symbol: TRLA4

USDA Native Status: L48 (N)

A tall, leafy, malodorous plant with pale blue to purple, bilaterally symmetrical flowers in long clusters in leaf axils.

The genus name comes from the Greek trichos (hair) and stemon (stamen), referring to the long slender stamens, which are characteristic of the genus. Among the several other species is the handsome, pleasantly aromatic shrub Woolly Blue Curls (T. lanatum), also known as Romero, which grows in southern California and has blue flowers in dense, terminal clusters covered with violet wool.


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Annual
Habit: Herb

Bloom Information

Bloom Time: Jul , Aug , Sep , Oct


Native Distribution: Northwestern Oregon south to Baja California.
Native Habitat: Dry slopes and fields.

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Seed Network - Corvallis, OR

Additional resources

USDA: Find Trichostema lanceolatum in USDA Plants
FNA: Find Trichostema lanceolatum in the Flora of North America (if available)
Google: Search Google for Trichostema lanceolatum


Record Modified: 2007-01-01
Research By: TWC Staff

Go back