Phacelia tanacetifolia

tansy phacelia

Family:Hydrophyllaceae

Rarity

CNPS-EB: B

8 current natural populations

Criteria:

Declining

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Phacelia
- Phacelia tanacetifolia
CCH2

Key

Ecology

Flowers March - May

Habitats:

Gravel
Sand, Sandstone

All Phacelia

References

Synonyms

Phacelia tanacetifolia var. cinerea
Phacelia tanacetifolia var. pseudo-distans

Populations

Key

Location	Pop ID	Last Recorded	Notes
Black Diamond - Nortonville	5	2021-04-22
Black Diamond Rgnl Preserve	24	2022-12-31
Contra Loma Rgnl Park	13	2020-02-29
Corral Hollow Area	11	2004-03-30
Crockett, West	10	2004-04-03
Lawrence Livermore Lab, Site 300, Corral Hollow	12	2021-12-31
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	14	2022-04-20
Pinole - other or unknown sites	21	2009-05-29
Altamont Pass	1	1923-12-31	Historic
Antioch - other or unknown sites	2	1907-12-31	Historic
Antioch Dunes	3	1933-12-31	Historic
Berkeley - other or unknown sites	4	1909-12-31	Historic
Brentwood area	6	1929-12-31	Historic
Byron - other or unknown sites	7	1992-04-16	Historic
Carquinez Strait Rgnl Park	22	1991-05-12	ID Uncertain
Chabot Rgnl Park	8	1982-04-06	Historic
Fairmont Ridge, near Lake Chabot	23	1991-06-16	ID Uncertain
Kirker Pass, Concord	9	1935-12-31	Historic
Los Vaqueros Watershed	17	1989-03-31	Historic
Midway	18	1933-12-31	Historic
Mines Road/Arryo Mocho	19	1926-12-31	Historic
Mt. Diablo State Park - North side	15	1999-12-31	Historic
Niles Canyon area	20	1904-12-31	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.