Myosurus minimus subsp. minimus

Rarity

CNPS-EB: B-PV

24 current natural populations

Criteria:

Limited/Threatened Habitat

Observations

Key

Ecology

Habitats:

Freshwater Marsh
Vernal Pool

All Myosurus

M. minimus subsp. apus (*A1?)
M. minimus subsp. minimus
M. sessilis (A2)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Altamont Pass	2	2021-04-04
Brushy Peak - EBRPD	33	2024-03-25
Brushy Peak - EBRPD	34	2024-03-25
Byron - other or unknown sites	27	2024-03-15
Byron - other or unknown sites	30	2024-03-15
Byron - other or unknown sites	31	2024-03-15
Byron - other or unknown sites	32	2024-03-15
Crockett	29	2023-04-01
Fremont Shoreline	21	2021-04-07
Garaventa Wetlands Preserve	28	2024-04-28
Livermore - other or unknown sites	39	2024-05-15
Los Mochos Boy Scout Camp, Mines Rd	35	2024-04-14
Los Mochos Boy Scout Camp, Mines Rd	37	2024-04-14
Los Vaqueros Watershed	20	2022-02-27
Los Vaqueros Watershed	38	2025-03-22
Marsh Creek State Park - formerly Cowell Ranch	1	2017-03-25
Newark	8	2004-04-10
Ohlone Rgnl Wilderness	36	2024-04-19
Springtown Wetlands Preserve	5	2018-04-10
Springtown Wetlands Preserve	22	2021-03-28
Springtown Wetlands Preserve	23	2024-04-24
Vasco Hills	24	2017-03-12
Vasco Hills	26	2024-03-22
Warm Springs, Fremont	6	2019-05-20
Antioch - other or unknown sites	25	1970-12-31	ID Uncertain
Bethany Reservoir - S of Byron	12	1986-04-15	Historic
Briones Valley - W of Brentwood	19	1932-12-31	Historic
Byron - other or unknown sites	13	1971-03-28	Historic
Byron - other or unknown sites	14	1952-04-14	Historic
Byron - other or unknown sites	15	1992-04-16	Historic
Byron - other or unknown sites	16	1957-03-15	Historic
Byron - other or unknown sites	17	1930-04-17	Historic
Discovery Bay	18	1962-03-24	Historic
Fremont Flatlands and Hills	10	1991-12-31	Historic
Grizzly Peak - other or unknown sites	11	1931-12-31	Historic
Livermore Valley	4	1957-05-07	Historic
Mt. Eden	9	1889-12-31	Historic
Vasco Road, South - ALA Co	3	1957-05-07	Historic
Warm Springs, Fremont	7	1996-12-31	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.