Lycopus americanus

cutleaf bugleweed

Family:Lamiaceae

Rarity

CNPS-EB: B

9 current natural populations

Criteria:

Limited/Threatened Habitat
Narrow Range in ALA & CCA
Small Populations

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Lycopus
- Lycopus americanus
CCH2

Key

Ecology

Flowers August - September

Habitats:

Freshwater Marsh
Riparian

All Lycopus

L. americanus
L. asper (A1)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Antioch Dunes	3	2022-08-11
Bethany Reservoir - S of Byron	10	2024-10-09
Big Break, Antioch	5	2017-09-30
Clifton Court Forebay - E of Byron	11	2016-07-05
Corteva Wetlands	8	2025-07-26
Corteva Wetlands	9	2025-09-11
Old River	1	2002-07-15
Pittsburg Shore	14	2023-11-21
Walnut Creek	13	2017-09-20
Antioch Shoreline	4	1996-12-31	Historic
Browns Island	2	1978-12-31	Historic
Frank's Tract	7	1990-09-16	Historic
Sunol Rgnl Wilderness	12	1999-12-31	ID Uncertain
Webb Tract	6	1988-08-30	Historic

The list of populations shows the distinct populations identified by the CNPS-EB Rare and Unusual Plants Committee. The locations in this list are very general. More specific location details can be obtained from the links in the Observations section (for some of these links, a login is required).

Font

Populations in bold type have precise coordinates available for field volunteers and researchers.

Populations in normal type are only known from a description of the location; no precise coordinates are available.

Background

Populations with a white background have been observed in the last 25 years.

Populations with a blue background have not been observed for at least 25 years.

Populations with an orange background have an uncertain location or identification, or are planted.

Columns

Pop ID is a label that identifies the population. Many locations have more than one population of a species, and the population ID is used to distinguish them.