Species Details

Orcuttia pilosa

hairy Orcutt grass

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Photo of Orcuttia pilosa
© 2003 George W. Hartwell
Photo of Orcuttia pilosa
© 2011 Chris Winchell
Photo of Orcuttia pilosa
© 2010 Chris Winchell
CA Rare Plant Rank: 1B.1
Fed List: FE (1997-03-26)
State List: CE (1979-09-01)
Global Rank: G1
State Rank:
S1
Other Status: SB_CalBG/RSABG
CRPR Changes:
Add Date: 1980-01-01
Date Edited: 2021-05-26
Lifeform: annual herb
Blooming Period: May-Sep
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Elevation:
46 - 200 meters
150 - 655 feet
General Habitats:
  • Vernal pools
Microhabitat Details:
Microhabitat:
Notes:
Seriously threatened by agriculture, urbanization, overgrazing, non-native plants, and trampling. See Bulletin of the Torrey Botanical Club 68:155 (1941) for original description, and American Journal of Botany 69:1082-1095 (1982) for taxonomic treatment.
Threats:
Taxonomy:
Threat List Total: 11
Total EOs % of EOs
EOs with Threat Listed: 31 86 %
THREAT LIST:
Agriculture 18 50%
Grazing 17 47%
Non-native plant impacts 9 25%
Disking 8 22%
Development 5 13%
Total Occurrences: 36
Element Occurrence Ranks:
A B C D X U
3 9 4 3 15 2
Occurrence Status:
Historical >20 Years 23
Recent <=20 Years 13
Presence:
Presumed Extant 21
Possibly Extirpated 7
Presumed Extirpated 8
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Glenn (GLE), Madera (MAD), Merced (MER), Stanislaus (STA), Tehama (TEH)
Quads: Name (Quad Code)
Cooperstown (3712065)*, Daulton (3711918), Gregg (3611988), Herndon (3611978), Kismet (3712011)*, Lanes Bridge (3611987), Logandale (3912242), Madera (3612081), Merced (3712034), Montpelier (3712056), Paulsell (3712066)*, Richardson Springs NW (3912188), Turlock Lake (3712055), Vina (3912281), 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.
Presumed Extant
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