Species Details

Rhynchospora californica

California beaked-rush

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Species Description:

Rhynchospora californica, commonly known as California beaked-rush, is a perennial rhizomatous herb in the Cyperaceae that is found only in California. It occurs within Bogs and fens, Lower montane coniferous forest, Marshes and swamps (freshwater), and Meadows and seeps (seeps), growing at elevations from 45 to 1010 meters. Rhynchospora californica is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Rhynchospora californica Gale
Common Name: California beaked-rush
Family:	Cyperaceae
Element Code:	PMCYP0N060
USDA Plants Symbol:	RHCA10
Synonyms/Other Names:
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G1
State Rank:	S1
Other Status:	BLM_S; SB_UCSC
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2024-11-05

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: May-Jul

Elevation:
45 - 1010 meters
150 - 3315 feet

General Habitats:

Bogs and fens
Lower montane coniferous forest
Meadows and seeps (seeps)
Marshes and swamps (freshwater)

Microhabitat Details:

Microhabitat:

Notes

Notes: Threatened by marsh habitat loss. See Rhodora 46:272-273 (1944) for original description, and Madroño 33(2):150 (1986) for information on BUT Co. collection.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	5	56 %
Grazing	2	22%
Non-native plant impacts	2	22%
Altered flood/tidal/hydrologic regime	1	11%
Foot traffic/trampling	1	11%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					9
A	B	C	D	X	U
0	3	0	0	2	4

Occurrence Status:
Historical >20 Years	7
Recent <=20 Years	2

Presence:
Presumed Extant	7
Possibly Extirpated	1
Presumed Extirpated	1

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Butte (BUT), Marin (MRN), Napa (NAP), Sonoma (SON)

Quads: Name (Quad Code)
Drakes Bay (3812218), Mt. George (3812232), Paradise West (3912176), Richardson Springs (3912177), Sebastopol (3812247), Two Rock (3812237)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory