© 2013 Justy Leppert |
© 2008 F. Gauna |
© 2014 Dean Wm. Taylor |
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Scientific Name: Orcuttia tenuis Hitchc. |
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Common Name: slender Orcutt grass |
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| Family: | Poaceae | |
| Element Code: | PMPOA4G050 | |
| USDA Plants Symbol: | ORTE | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.1 |
| Fed List: | FT (1997-03-26) |
| State List: | CE (1979-09-01) |
| Global Rank: | G2 |
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State Rank: |
S2 |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-06-08 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: May-Sep(Oct)
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Elevation:
35 - 1760 meters 115 - 5775 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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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: |
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| Threat List Total: | 14 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 84 | 84 % |
| THREAT LIST: | ||
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| 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% |
| Total Occurrences: | 100 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 14 | 50 | 19 | 3 | 7 | 7 |
| Occurrence Status: | |||||
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| Historical >20 Years | 32 | ||||
| Recent <=20 Years | 68 | ||||
| Presence: | |||||
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| Presumed Extant | 93 | ||||
| Possibly Extirpated | 4 | ||||
| Presumed Extirpated | 3 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Butte (BUT), Lake (LAK), Lassen (LAS), Modoc (MOD), Plumas (PLU), Sacramento (SAC), Shasta (SHA), Siskiyou (SIS), Tehama (TEH) |
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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) |
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Notes:
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Presumed Extant
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