California macrophylla

round-leaved filaree

Family:Geraniaceae

Rarity

CNPS-EB: B-PV

15 current natural populations

Criteria:

Small Populations

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus California
- California macrophylla
CCH2

Key

Ecology

Flowers March - July

Habitats:

Grassland (Annual or Perennial)
Scrub (Coastal or Interior)

References

Synonyms

Erodium macrophyllum
Erodium macrophyllum var. californicum

Populations

Key

Location	Pop ID	Last Recorded	Notes
Bethany Reservoir - S of Byron	8	2015-03-12
Black Diamond Rgnl Preserve	2	2022-01-31
Black Diamond Rgnl Preserve	21	2022-12-31
Brushy Peak - EBRPD	12	2019-12-31
Corral Hollow Area	15	2006-04-18
Lawrence Livermore Lab, Site 300, Corral Hollow	17	2021-12-31
Lone Tree Valley, Antioch	5	2005-12-31
Los Vaqueros Watershed	11	2010-03-31
Los Vaqueros Watershed	23	2025-03-22
Marsh Creek State Park - formerly Cowell Ranch	7	2017-03-25
Mountain House	1	2008-05-01
Patterson Pass	13	2006-03-31
Pittsburg - other or unknown sites	10	2011-12-31
Tesla, Corral Hollow	16	2006-04-18
Vasco Hills	22	2023-04-07
Antioch - other or unknown sites	3	1929-04-25	Historic
Claremont Canyon Rgnl Park	19	1904-05-17	Historic
Deer Valley	6	1994-12-31	Historic
Kirker Pass, Concord	9	1862-05-10	Historic
Lone Tree Valley, Antioch	4	1998-04-07	Historic
Moraga - other or unknown sites	18	1888-12-31	Historic
Oakland Hills - other or unknown sites	20	1891-04-15	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.