Bolboschoenus maritimus subsp. paludosus

Rarity

CNPS-EB: C

17 current natural populations

Criteria:

Limited/Threatened Habitat
Declining

Observations

Key

Ecology

Habitats:

Miscellaneous Wetlands

All Bolboschoenus

B. fluviatilis (A1x)
B. maritimus subsp. paludosus

References

Synonyms

Scirpus maritimus var. paludosus
Scirpus pacificus
Scirpus paludosus

Populations

Key

Location	Pop ID	Last Recorded	Notes
Briones Rgnl Park	7	2022-09-21
Brushy Peak - EBRPD	8	2021-09-01
Brushy Peak - EBRPD	30	2021-09-01
Concord Naval Weapons Station	10	2008-12-31
Coyote Hills Rgnl Park	13	2025-08-09
Dublin, E of 680, N of 580	29	2019-12-31
Livermore - other or unknown sites	16	2012-09-17
Los Vaqueros Watershed	15	2003-10-04
Los Vaqueros Watershed	32	2024-10-27
Martinez - other or unknown sites	19	2004-06-06
Morgan Territory Rgnl Park	17	2003-06-08
Pacheco Slough	21	2025-08-10
Pittsburg Shore	33	2025-06-16
Pt. Molate	22	2022-07-02
Springtown Wetlands Preserve	24	2020-04-28
Sycamore Grove Rgnl Park - LAPRD	31	2024-10-01
Warm Springs, Fremont	25	2019-05-20
Alameda Creek - Sunol Valley section, SFWD	1	2000-12-31	Historic
Altamont Pass	2	1940-12-31	Historic
Alvarado	3	1958-12-31	Historic
Bay Farm Island - S end of Alameda	9	2000-09-21	Historic
Berkeley Shoreline	4	1990-10-16	Historic
Berkeley Shoreline	5	1940-12-31	Historic
Black Diamond Rgnl Preserve	28	1999-11-14	Historic
Brentwood area	6	1999-12-31	Historic
Browns Island	27	1978-08-14	Historic
Contra Loma Rgnl Park	12	1979-12-31	Historic
Corral Hollow Area	11	1930-12-31	Historic
Corteva Wetlands	26	1998-05-08	Historic
Deer Valley	14	1998-12-31	Historic
Moraga - other or unknown sites	18	1979-12-31	Historic
Newark	20	1895-12-31	Historic
Pt. Richmond Area	23	1940-12-31	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.