Trifolium depauperatum var. depauperatum

dwarf sack clover

Family:Fabaceae

Rarity

CNPS-EB: C

19 current natural populations

Observations

Key

Ecology

Flowers March - May

Habitats:

Grassland (Annual or Perennial)
Miscellaneous Wetlands

All Trifolium

T. barbigerum (B)
T. columbinum (C)
T. cyathiferum (A1)
T. depauperatum var. depauperatum
T. fucatum (B-PV)
T. grayi (A2)
T. hydrophilum (*A2)
T. macraei (A1)
T. obtusiflorum (B-PV)
T. wormskioldii (A1)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Byron - other or unknown sites	19	2024-03-15
Byron - other or unknown sites	20	2024-03-15
Chabot Rgnl Park	15	2022-04-09
Franklin Canyon	7	2005-05-06
Garaventa Wetlands Preserve	14	2023-04-15
Los Vaqueros Watershed	17	2023-03-31
Los Vaqueros Watershed	26	2025-03-22
Mt. Diablo State Park - East side	21	2024-03-28
Mt. Diablo State Park - North side	16	2022-04-15
Mt. Diablo State Park - North side	18	2023-04-12
Ohlone Rgnl Wilderness	13	2024-05-17
Ohlone Rgnl Wilderness	24	2025-04-04
Pleasanton Ridge Rgnl Park	25	2025-04-25
Springtown Wetlands Preserve	9	2003-03-23
Springtown Wetlands Preserve	22	2021-03-28
Springtown Wetlands Preserve	23	2024-04-12
Tesla, Corral Hollow	4	2016-04-02
Vasco Hills	12	2024-03-22
Warm Springs, Fremont	11	2019-05-20
Byron - other or unknown sites	1	1928-04-19	Historic
Byron Hot Springs area	2	1993-03-28	Historic
Clifton Court Forebay - E of Byron	3	1989-04-05	Historic
Deer Valley	6	1998-12-31	Historic
Livermore - other or unknown sites	8	1928-04-19	Historic
Morgan Territory Rgnl Park	10	1991-06-30	Historic
Mt. Diablo State Park - North side	5	1998-04-12	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.