Juncus phaeocephalus var. paniculatus

panicled rush, brown-headed rush

Family:Juncaceae

Rarity

CNPS-EB: A2

6 current natural populations

Criteria:

Limited/Threatened Habitat
Small Populations

Observations

Key

Ecology

Flowers June - September

Habitats:

Miscellaneous Wetlands

All Juncus

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Concord Naval Weapons Station	5	2008-12-31
Hercules - other or unknown sites	10	2004-05-28
Martinez - other or unknown sites	12	2005-03-29
Mt. Diablo State Park - North side	8	2023-06-10
Mt. Wanda, Martinez	13	2003-06-06
UC Field Station, Richmond	16	2003-06-30
Alameda Creek - Sunol Valley section, SFWD	1	2000-12-31	Historic
Alvarado	2	1994-12-31	Historic
Briones Rgnl Park	3	2000-10-25	Historic
Brushy Peak - EBRPD	4	2000-12-31	Historic
Chabot Rgnl Park	6	1982-05-09	Historic
Miller - Knox Rgnl Park	11	1994-03-29	Historic
Mission Peak Rgnl Park	22	2000-05-22	Historic
Mt. Diablo State Park - East side	7	1993-05-08	Historic
Mt. Diablo State Park - West side	9	1998-05-03	Historic
Pleasanton Ridge Rgnl Park	14	1993-07-13	Historic
Pt. Pinole Rgnl Park	15	1993-05-05	Historic
Shell Ridge	17	1997-12-31	Historic
Sunol Rgnl Wilderness	18	1993-08-06	Historic
Walpert Ridge	20	1998-12-31	Historic
Warm Springs, Fremont	21	1896-12-31	Historic
Wildcat Rgnl Park	19	1999-07-17	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.