Gutierrezia californica

Rarity

CNPS-EB: B-PV

30 current natural populations

Criteria:

Small Populations

Observations

Key

Ecology

Flowers July - November

Habitats:

Grassland (Annual or Perennial)
Open Dry Slope
Rock, Tallus, Scree
Serpentine or Serpentine-derived soils

References

Synonyms

Gutierrezia bracteata

Populations

Key

Location	Pop ID	Last Recorded	Notes
Antioch Dunes	1	2023-03-30
Antioch Dunes	2	2022-05-06
Black Diamond - Nortonville	38	2002-05-10
Black Diamond - Nortonville	39	2020-10-22
Black Diamond - Stewartsville	5	2021-04-10
Black Diamond Rgnl Preserve	3	2023-04-18
Black Diamond Rgnl Preserve	4	2022-12-31
Brushy Peak - EBRPD	7	2000-12-31
Brushy Peak - EBRPD	8	2023-10-26
Corral Hollow Area	9	2000-10-14
Corral Hollow Area	10	2003-06-11
Del Valle Regional Park	15	2021-01-31
Del Valle Regional Park	16	2022-06-05
Joaquin Miller Park, Oakland	29	2007-12-31
Lawrence Livermore Lab, Site 300, Corral Hollow	11	2021-12-31
Lime Ridge area	20	2021-08-08
Los Vaqueros Watershed	21	2022-02-21
Mission Peak Rgnl Park	24	2022-01-15
Oakland Hills - North	25	2006-12-31
Patterson Pass	28	2000-10-14
Pittsburg Hills	26	2002-07-18
Round Valley Rgnl Park	32	2021-04-28
Round Valley Rgnl Park	40	2020-02-29
San Francisco Water District land, Sunol	33	2009-12-31
Skyline Serpentine Prairie, Redwood Rgnl Park	30	2024-07-21
Sunol Rgnl Wilderness	34	2022-07-01
Sunol Rgnl Wilderness	35	2021-07-08
Sycamore Grove Rgnl Park - LAPRD	36	2024-09-30
Tesla, Corral Hollow	12	2003-06-11
Vasco Caves Rgnl Park	37	2010-04-15
Briones Valley - W of Brentwood	6	1998-12-31	Historic
Contra Loma Rgnl Park	13	1993-03-14	Historic
Deer Valley	17	1998-12-31	Historic
Del Valle Regional Park	14	1990-10-28	Historic
Fairmont Ridge, near Lake Chabot	18	1990-12-31	Historic
Horse Valley - W of Brentwood, S of Antioch	19	1994-12-31	Historic
Mines Road/Arryo Mocho	23	1991-03-10	Historic
Morgan Territory - other or unknown sites	22	1990-12-31	Historic
Pittsburg Hills	27	1992-04-08	Historic
Redwood Rgnl Park	31	1990-12-31	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.