Taxon Details

Stipa exigua

little ricegrass

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Taxon Summary:

Stipa exigua, commonly known as little ricegrass, is a perennial herb in the Poaceae that is found in California and elsewhere. It occurs within Great Basin scrub, growing at elevations from 2345 to 2420 meters. Stipa exigua is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Stipa exigua (Thurb.) Columbus & J.P. Sm.
Common Name: little ricegrass
Family:	Poaceae
Element Code:	PMPOA80030
USDA Plants Symbol:
Synonyms/Other Names: Oryzopsis exigua
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G4G5
State Rank:	S2
Other Status:	BLM_S
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Aug

Elevation:
2345 - 2420 meters
7695 - 7940 feet

General Habitats:

Great Basin scrub

Microhabitat Details:

Microhabitat:

Notes

Notes: Not in TJM (1993). See Botany of the Wilkes Exploratory Expedition 17:481 (1874) for original description, and Phytologia 74(1):1-25 (1993) for taxonomic treatment.
Threats:
Taxonomy: Not in TJM (1993).

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	33 %
Grazing	1	33%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					3
A	B	C	D	X	U
1	0	0	0	0	2

Occurrence Status:
Historical >20 Years	3
Recent <=20 Years	0

Presence:
Presumed Extant	3
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Colorado (CO), Idaho (ID), Montana (MT), Nevada (NV), Oregon (OR), Utah (UT), Washington (WA), Wyoming (WY)

California Counties and Islands: Name (Code)
Lassen (LAS), Siskiyou (SIS)

Quads: Name (Quad Code)
Harvey Mtn. (4012161), Mount Dome (4112176), Observation Peak (4012072), Pine Creek Valley (4012151)

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