Species Details

Rhynchospora capitellata

brownish beaked-rush

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Classification

Scientific Name: Rhynchospora capitellata (Michx.) Vahl
Common Name: brownish beaked-rush
Family:	Cyperaceae
Element Code:	PMCYP0N080
USDA Plants Symbol:	RHCA12
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S1
Other Status:	IUCN_LC
CRPR Changes: changed from 2.2 to 2B.2 on 2013-06-12
Add Date:	1974-01-01
Date Edited:	2022-06-08

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jul-Aug

Elevation:
45 - 2000 meters
150 - 6560 feet

General Habitats:

Lower montane coniferous forest
Meadows and seeps
Marshes and swamps
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Mesic

Notes

Notes: Possibly threatened by grazing and development. See Rhodora 46:115-121 (1944) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	8
	Total EOs	% of EOs
EOs with Threat Listed:	6	24 %
Foot traffic/trampling	3	12%
Other	2	8%
Surface water diversion	1	4%
Altered flood/tidal/hydrologic regime	1	4%
Development	1	4%
Grazing	1	4%
Logging	1	4%
Non-native plant impacts	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					25
A	B	C	D	X	U
4	1	3	0	1	16

Occurrence Status:
Historical >20 Years	16
Recent <=20 Years	9

Presence:
Presumed Extant	24
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Alabama (AL), Arkansas (AR), California (CA), Connecticut (CT), Delaware (DE), District of Columbia (DC), Florida (FL), Georgia (GA), Illinois (IL), Indiana (IN), Kansas (KS), Kentucky (KY), Louisiana (LA), Maine (ME), Maryland (MD), Massachusetts (MA), Michigan (MI), Mississippi (MS), Missouri (MO), Nebraska (NE), New Hampshire (NH), New Jersey (NJ), New York (NY), North Carolina (NC), Ohio (OH), Oklahoma (OK), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), South Carolina (SC), Tennessee (TN), Texas (TX), Vermont (VT), Virginia (VA), West Virginia (WV), Wisconsin (WI)

California Counties and Islands: Name (Code)
Butte (BUT), El Dorado (ELD), Mariposa (MPA), Nevada (NEV), Plumas (PLU), Sonoma (SON)(?), Tehama (TEH), Trinity (TRI), Tuolumne (TUO), Yuba (YUB)

Quads: Name (Quad Code)
Brush Creek (3912163), Cascade (3912162), Challenge (3912142), Chicago Park (3912028), Clipper Mills (3912152), Crescent Mills (4012018), Devil Peak (3812085), Duckwall Mtn. (3712081), Georgetown (3812087), Grass Valley (3912121), Jawbone Ridge (3712071), Kimshew Point (3912184), Meadow Valley (3912181), Nevada City (3912131), North Bloomfield (3912038), Paradise West (3912176), Pike (3912048), Pollock Pines (3812075), Pulga (3912174), Quincy (3912088), Sebastopol (3812247)(?), Shingletown (4012148), Trinity Center (4012286), Tunnel Hill (3812086)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory