Isolepis cernua

Rarity

CNPS-EB: C

17 current natural populations

Criteria:

Limited/Threatened Habitat

Observations

Key

Ecology

Habitats:

Miscellaneous Wetlands
Sand, Sandstone

All Isolepis

I. carinata (A1)

I. cernua

References

Synonyms

Scirpus cernuus subsp. californicus
Scirpus cernuus var. californicus
Scirpus cernuus

Populations

Key

Location	Pop ID	Last Recorded	Notes
Antioch Dunes	1	2022-08-11
Antioch Dunes	26	2023-06-21
Concord Naval Weapons Station	5	2010-07-07
Corteva Wetlands	3	2021-06-01
Corteva Wetlands	27	2022-08-28
Gateway area	15	2023-08-02
Lake Temescal Rgnl Park	14	2020-09-08
Martinez - other or unknown sites	9	2021-07-11
Martinez shoreline - out of park or specific site unknown	25	2020-06-13
Pittsburg Shore	8	2002-05-02
Pt. Edith	6	2002-08-30
Rhodia Marsh, Martinez	7	2002-12-31
San Antonio Reservoir - SFWD	22	2004-06-09
San Francisco Water District land, Sunol	23	2016-05-10
Siesta Valley, Lower - EBMUD land	18	2008-04-09
Siesta Valley, Upper - EBMUD land	19	2018-05-18
Wildcat Rgnl Park	28	2024-02-09
Antioch Shoreline	2	1996-12-31	Historic
Browns Island	4	1991-08-18	Historic
Cordonices Creek, Lower	10	1958-12-31	Historic
EBMUD land on San Pablo Ridge	20	1989-12-31	Historic
Emeryville	11	1961-12-31	Historic
Lily Spring, San Pablo Ridge - EBMUD land	17	1993-05-07	Historic
Oakland - other or unknown sites	12	1882-12-31	Historic
Pt. Molate	13	1998-12-31	Historic
Sibley Rgnl Park	16	1992-06-07	Historic
Sycamore Grove Rgnl Park - LAPRD	24	1995-09-17	Historic
Wildcat Rgnl Park	21	1990-08-05	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.