Taxon Report
Orcuttia tenuis Hitchc.slender Orcutt grass |
 © 2013 Justy Leppert |
Classification
|
Scientific Name: |
Orcuttia tenuis Hitchc. |
|
Common Name: |
slender Orcutt grass |
| Family: | Poaceae |
| Element Code: | PMPOA4G050 |
| USDA Plants Symbol: | ORTE |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: May-Sep(Oct) | May-Sep(Oct) |
| Elevation: | 35-1760 (115-5775) |
| General Habitats: | Vernal pools |
| Microhabitat: | Gravelly (often) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G2 |
|
State Rank: |
S2 |
| State List: | CE |
| Fed List: | FT |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 100 |
| Element Occurrence Ranks: | |
| Excellent (A) | 14 |
| Good (B) | 50 |
| Fair (C) | 19 |
| Poor (D) | 3 |
| None (X) | 7 |
| Unknown (U) | 7 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Butte (BUT), Lake (LAK), Lassen (LAS), Modoc (MOD), Plumas (PLU), Sacramento (SAC), Shasta (SHA), Siskiyou (SIS), Tehama (TEH) | |
| Quads: Name (Quad Code) | |
| Almanor (4012122), Ambrose (4112058), Balls Ferry (4012242), Bend (4012232), Boles Meadows West (4112068), Buffalo Creek (3812152), Burney (4012186), Cottonwood (4012243), Crank Mountain (4112142), Dales (4012231), Dana (4112115), Donica Mtn. (4112132), Elk Grove (3812143), Enterprise (4012253), Hager Basin (4112077), Happy Camp Mtn. (4112141), Harvey Mtn. (4012161), Kelseyville (3812287), Knobcone Butte (4112151), Middletown (3812275), Murken Bench (4012174), Old Station (4012164), Palermo (3912145), Palo Cedro (4012252), Poison Lake (4012162), Richardson Springs NW (3912188), Spaulding Butte (4112152), Swain Mountain (4012141), Swains Hole (4012163), Timbered Crater (4112124), Tuscan Buttes Ne (4012241), Vina (3912281), Washington Mtn. (4112048), West Prospect Peak (4012154), Whittemore Ridge (4112066) | |
Threat List Data from the CNDDB
| Threat List Total: | 14 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 84 | 84 % | |
| Grazing | 61 | 61% |
| Foot traffic/trampling | 34 | 34% |
| ORV activity | 24 | 24% |
| Other | 24 | 24% |
| Development | 11 | 11% |
| Non-native plant impacts | 10 | 10% |
| Road/trail construction/maint. | 7 | 7% |
| Altered flood/tidal/hydrologic regime | 6 | 6% |
| Logging | 6 | 6% |
| Surface water diversion | 5 | 5% |
| Recreational use (non-ORV) | 4 | 4% |
| Feral pigs | 4 | 4% |
| Biocides | 2 | 2% |
| Improper burning regime | 2 | 2% |
Notes
| Seriously threatened by agriculture, residential development, grazing, trampling, vehicles, recreational activities, logging, fire, and non-native plants. Species management guidelines adopted by Lassen NF (USFS) and BLM. See American Journal of Botany 21:131 (1934) for original description and 69:1082-1095 (1982) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 10 January 2025].