Species Details

Sphenopholis obtusata

prairie wedge grass

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Scientific Name:
Sphenopholis obtusata (Michx.) Scribn.
Common Name:
prairie wedge grass
Family: Poaceae
Element Code: PMPOA5T030
USDA Plants Symbol: SPOB
Synonyms/Other Names:
CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G5
State Rank:
Other Status:
CRPR Changes:
changed from 2.2 to 2B.2 on 2013-06-12
Add Date: 1974-01-01
Date Edited: 2022-06-08
Lifeform: perennial herb
Blooming Period: Apr-Jul
300 - 2000 meters
985 - 6560 feet
General Habitat:
  • Cismontane woodland
  • Meadows and seeps
General Micro Habitat:
Micro Habitat:
  • Mesic
Need quads for Riverside Co. See Rhodora 8(92): 137-146 (1906) for discussion of genus.
Total Occurrences: 19
Element Occurrence Ranks:
0 1 0 0 0 18
Occurrence Status:
Historical >20 Years 17
Recent <=20 Years 2
Presumed Extant 19
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Alabama (AL), Arizona (AZ), Arkansas (AR), Baja California (BA), California (CA), Colorado (CO), Connecticut (CT), Delaware (DE), District of Columbia (DC), Florida (FL), Georgia (GA), Hawaii (HI), Idaho (ID), Illinois (IL), Indiana (IN), Iowa (IA), Kansas (KS), Kentucky (KY), Louisiana (LA), Maine (ME), Maryland (MD), Massachusetts (MA), Michigan (MI), Minnesota (MN), Mississippi (MS), Missouri (MO), Montana (MT), Nebraska (NE), Nevada (NV), New Hampshire (NH), New Jersey (NJ), New Mexico (NM), New York (NY), North Carolina (NC), North Dakota (ND), Ohio (OH), Oklahoma (OK), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), Sonora, Mexico (SO), South Carolina (SC), South Dakota (SD), Tennessee (TN), Texas (TX), Utah (UT), Vermont (VT), Virginia (VA), Washington (WA), West Virginia (WV), Wisconsin (WI), Wyoming (WY)
California Counties and Islands: Name (Code)
Amador (AMA), Fresno (FRE), Inyo (INY), Mono (MNO), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)?, Stanislaus (STA), Tulare (TUL)
Quads: Name (Quad Code)
Amador City (3812047), Bridgeport (3811932), Brush Lake (3712151), Chocolate Mtn. (3711748), Crooked Creek (3711841), Cuyamaca Peak (3211685)?, Durrwood Creek (3611814), Fairview (3511884), Fish Springs (3711813), Fontana (3411714), Jackson (3812037), Julian (3311615), Laws (3711843), Mokelumne Hill (3812036), Moonridge (3411627), Mt. Givens (3711931), Mt. Henry (3711827), Mt. Patterson (3811943), Pine Grove (3812046), Rattlesnake Canyon (3411636), San Bernardino South (3411713), Santa Ysabel (3311616), Sweetwater Creek (3811942), Tule Springs (3211686), Ward Mountain (3711828)
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.


Presumed Extant
Counties   Quads