Calochortus pulchellus

Rarity

CNPS-EB: *A2
State CNPS: 1B.2
Global Rank: G2
CNDDB Rank: S2

37 current natural populations

Criteria:

Small Geographical Range

Observations

Key

Ecology

Flowers April - June

Habitats:

Chaparral
Serpentine or Serpentine-derived soils
Woodland

All Calochortus

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Black Diamond Rgnl Preserve	1	2021-04-22
Black Diamond Rgnl Preserve	51	2012-05-12
Briones Rgnl Park	2	2020-05-03
Briones Rgnl Park	3	2020-05-06
Briones Rgnl Park	6	2003-05-16
Briones Rgnl Park	7	2003-05-18
Briones Rgnl Park	56	2023-04-28
Briones Rgnl Park	57	2024-04-28
Carquinez Strait Rgnl Park	11	2015-04-23
Carquinez Strait Rgnl Park	13	2011-05-31
Chaparral Springs - S of Clayton	8	2003-12-31
Diablo Foothills Rgnl Park	14	2021-04-30
Lime Ridge area	37	2021-04-30
Los Vaqueros Watershed	39	2004-05-04
Marsh Creek Road	48	2009-04-03
Morgan Territory Rgnl Park	40	2020-05-07
Morgan Territory Rgnl Park	41	2022-04-01
Morgan Territory Rgnl Park	43	2022-04-25
Morgan Territory Road	45	2014-04-22
Mt. Diablo State Park - East side	15	2021-05-15
Mt. Diablo State Park - North side	16	2008-04-26
Mt. Diablo State Park - North side	17	2023-04-16
Mt. Diablo State Park - North side	18	2018-04-28
Mt. Diablo State Park - North side	19	2021-04-23
Mt. Diablo State Park - North side	21	2008-04-26
Mt. Diablo State Park - North side	28	2022-05-29
Mt. Diablo State Park - North side	53	2016-04-21
Mt. Diablo State Park - North side	54	2019-04-09
Mt. Diablo State Park - North side	55	2015-05-12
Mt. Diablo State Park - South side	23	2021-04-30
Mt. Diablo State Park - South side	24	2021-05-02
Mt. Diablo State Park - South side	25	2010-06-02
Mt. Diablo State Park - South side	26	2015-04-24
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	27	2021-04-13
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	30	2011-06-12
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	31	2009-06-16
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	33	2007-05-18
Briones Rgnl Park	4	1994-05-25	Historic
Briones Rgnl Park	5	1992-05-03	Historic
Carquinez Strait Rgnl Park	10	1994-05-12	Historic
Carquinez Strait Rgnl Park	12	1992-05-14	Historic
Clayton Ranch - SE of Clayton, EBRPD	9	1998-12-31	Historic
Lime Ridge area	38	1996-04-18	Historic
Morgan Territory Rgnl Park	42	1992-05-14	Historic
Morgan Territory Rgnl Park	44	1999-12-31	Historic
Morgan Territory Road	46	1989-12-31	Historic
Mt. Diablo State Park - North side	20	1991-04-07	Historic
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	22	1991-05-26	Historic
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	29	1991-04-21	Historic
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	32	1985-04-18	Historic
Mt. Diablo State Park - West side	34	1991-04-14	Historic
Mt. Diablo State Park - West side	35	1992-04-03	Historic
Mt. Diablo State Park - West side	36	1994-12-31	Historic
Mt. Wanda, Martinez	49	1993-12-31	Historic
Round Valley Rgnl Park	47	1996-03-01	Historic
San Leandro Reservoir - EBMUD	50	1993-12-31	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.