Juncus phaeocephalus var. phaeocephalus

brownheaded rush

Family:Juncaceae

Rarity

CNPS-EB: C

13 current natural populations

Criteria:

Limited/Threatened Habitat
E Limit
Small Populations

Observations

Key

Ecology

Flowers June - August

Habitats:

Miscellaneous Wetlands

All Juncus

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Brushy Peak - EBRPD	21	2021-09-01
Chabot Rgnl Park	2	2002-05-11
Chabot Rgnl Park	17	2023-07-08
Knowland Park, Oakland	16	2003-11-22
Knowland Park, Oakland	20	2022-06-18
Mt. Diablo State Park - North side	18	2023-08-19
Oakland Shoreline	6	2022-05-24
Palomares Road - Stoneybrook Canyon	12	2002-08-27
Pt. Molate	19	2018-04-29
San Pablo Reservoir - EBMUD	15	2022-07-16
Siesta Valley, Upper - EBMUD land	10	2018-05-18
Siesta Valley, Upper - EBMUD land	22	2025-07-17
UC Field Station, Richmond	13	2003-06-02
Alvarado	1	1994-12-31	Historic
Antioch - other or unknown sites	11	1998-07-17	Historic
Briones Rgnl Park	14	1998-06-02	Historic
Pt. Pinole Rgnl Park	5	1993-05-05	Historic
San Leandro Reservoir - EBMUD	4	1999-12-31	Historic
Shell Ridge	9	1998-06-20	Historic
Sunol Rgnl Wilderness	7	1993-08-06	ID Uncertain
Wildcat Rgnl Park	3	1991-08-11	Historic
Wildcat Rgnl Park	8	1991-06-14	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.