Species Details

Orcuttia inaequalis

San Joaquin Valley Orcutt grass

Download Report Calflora eFlora CCH CalPhotos

Classification

Scientific Name: Orcuttia inaequalis Hoov.
Common Name: San Joaquin Valley Orcutt grass
Family:	Poaceae
Element Code:	PMPOA4G060
USDA Plants Symbol:	ORIN
Synonyms/Other Names: Orcuttia californica (Hoov.) Hoov. var. inaequalis

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	FT (1997-03-26)
State List:	CE (1979-09-01)
Global Rank:	G1
State Rank:	S1
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb
Blooming Period: Apr-Sep
Elevation: 10 - 755 meters 35 - 2475 feet
General Habitat: Vernal pools
General Micro Habitat:
Micro Habitat:

Notes

Notes: Seriously threatened by agriculture, development, overgrazing, channelization, and non-native plants. See Madroño 3(6):229 (1936) for original description, and American Journal of Botany 69:1082-1095 (1982) for taxonomic treatment.
Threats:
Taxonomy:
Other:

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					47
A	B	C	D	X	U
5	9	8	2	17	6

Occurrence Status:
Historical >20 Years	34
Recent <=20 Years	13

Presence:
Presumed Extant	30
Possibly Extirpated	1
Presumed Extirpated	16

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Fresno (FRE), Madera (MAD), Merced (MER), Solano (SOL), Stanislaus (STA)*, Tulare (TUL)

Quads: Name (Quad Code)
Cressey (3712046)*, Daulton (3711918), Denair (3712057)*, Elmira (3812138), Fresno North (3611977)*, Friant (3611986), Haystack Mtn. (3712043), Ivanhoe (3611942)*, Kismet (3712011)*, Lanes Bridge (3611987), Le Grand (3712022), Merced (3712034), Millerton Lake East (3711915), Monson (3611943), Montpelier (3712056)*, Orange Cove North (3611963), Owens Reservoir (3712032), Paulsell (3712066)*, Planada (3712033), Wahtoke (3611964)*, Waterford (3712067)*, Woodlake (3611941), Yosemite Lake (3712044)

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

Print this Map

Counties Quads

CNPS Rare Plant Inventory