Blepharizonia plumosa

big tarplant

Family:Asteraceae

Rarity

CNPS-EB: *A2
State CNPS: 1B.1
Global Rank: G1G2
CNDDB Rank: S1S2

17 current natural populations

Criteria:

N Limit
W Limit
Small Geographical Range

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Blepharizonia
- Blepharizonia plumosa
CCH2

Key

Ecology

Flowers July - November

Habitats:

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

All Blepharizonia

B. laxa (B)
B. plumosa

References

Synonyms

Blepharizonia plumosa subsp. plumosa

Populations

Key

Location	Pop ID	Last Recorded	Notes
Black Diamond Rgnl Preserve	3	2022-12-31
Black Diamond Rgnl Preserve	4	2006-07-06
Clayton Ranch - SE of Clayton, EBRPD	28	2011-09-14
Corral Hollow Area	23	2021-09-27
Corral Hollow Area	24	2008-08-23
Deer Valley	9	2013-09-06
Horse Valley - W of Brentwood, S of Antioch	7	2013-09-06
Horse Valley - W of Brentwood, S of Antioch	8	2013-09-05
Lawrence Livermore Lab, Site 300, Corral Hollow	22	2021-12-31
Livermore - other or unknown sites	21	2003-09-13
Los Vaqueros Watershed	13	2009-12-31
Los Vaqueros Watershed	14	2007-10-07
Marsh Creek - other or unknown sites	11	2009-12-31
Midway	20	2002-12-31
Sand Creek	16	2002-12-31
Tesla, Corral Hollow	25	2016-09-13
Vasco Caves Rgnl Park	27	2007-12-31
Antioch - other or unknown sites	1	1937-09-02	Historic
Brentwood area	10	1995-12-31	Historic
Briones Valley - W of Brentwood	12	1994-09-15	Historic
Byron - other or unknown sites	17	1978-09-17	Historic
Chaparral Springs - S of Clayton	15	1994-09-11	Historic
Contra Loma Rgnl Park	5	1989-12-31	Historic
Contra Loma Rgnl Park	6	2000-08-24	Historic
Corral Hollow Area	26	1932-12-31	Historic
Lime Ridge area	19	1996-12-31	Historic
Marsh Creek - other or unknown sites	29	1994-09-15	Historic
Pittsburg - other or unknown sites	2	1937-12-31	Historic
Walnut Creek	18	1937-12-31	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.