Taxon Report

Stipa exigua (Thurb.) Columbus & J.P. Sm.

little ricegrass

Print Report

©2011 Steve Matson

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

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Jun-Aug	Jun-Aug
Elevation:	2345-2420 (7695-7940)
General Habitats:	Great Basin scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.3
Global Rank:	G4G5
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	BLM_S
CRPR Changes:	changed from 2.3 to 2B.3 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	3
Element Occurrence Ranks:
Excellent (A)	1
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	2

Location


California Endemic: False
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)

Threat List Data from the CNDDB


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

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).

Selected References

USFS Potential Species of Conservation Concern Profile

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].