Ericameria arborescens

Rarity

CNPS-EB: B

17 current natural populations

Criteria:

Narrow Range in ALA & CCA
Small Populations

Observations

Key

Ecology

Flowers August - November

Habitats:

Chaparral
Forest
Woodland

All Ericameria

E. arborescens

E. nauseosa var. mohavensis (A2)

References

Synonyms

Haplopappus arborescens

Populations

Key

Location	Pop ID	Last Recorded	Notes
Chaparral Springs - S of Clayton	3	2003-12-31
Morgan Territory - other or unknown sites	18	2020-06-12
Mt. Diablo State Park - North side	4	2018-05-05
Mt. Diablo State Park - North side	5	2000-07-29
Mt. Diablo State Park - North side	6	2021-01-20
Mt. Diablo State Park - North side	19	2020-11-01
Mt. Diablo State Park - North side	20	2021-11-03
Mt. Diablo State Park - North side	25	2024-08-31
Mt. Diablo State Park - South side	7	2020-07-30
Mt. Diablo State Park - South side	9	2020-03-21
Mt. Diablo State Park - South side	10	2022-09-03
Mt. Diablo State Park - South side	17	2009-05-26
Mt. Diablo State Park - South side	22	2004-07-19
Mt. Diablo State Park - South side	23	2020-08-30
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	21	2016-07-20
Ohlone Rgnl Wilderness	24	2024-06-28
Sycamore Grove Rgnl Park - LAPRD	15	2000-12-31
Black Diamond Rgnl Preserve	1	1978-12-31	Historic
Brushy Peak Rgnl Park - LARPD	2	1995-03-19	Historic
Del Valle Regional Park	12	1979-12-31	Historic
Los Vaqueros Watershed	13	1988-12-31	Historic
Mt. Diablo State Park - South side	8	1992-04-12	Historic
Mt. Diablo State Park - West side	11	1991-03-31	Historic
Pinole Peak - EBMUD	16	1995-12-31	ID Uncertain
Redwood Rgnl Park	14	1896-12-31	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.