Taxon Details
Carex sheldonii
Sheldon's sedge
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©2015 Steve Matson |
©2015 Steve Matson |
Taxon Summary:
Carex sheldonii, commonly known as Sheldon's sedge, is a perennial rhizomatous herb in the Cyperaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest (mesic), Marshes and swamps (freshwater), and Riparian scrub, growing at elevations from 1200 to 2012 meters. Carex sheldonii is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.|
Scientific Name: Carex sheldonii Mkze. |
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Common Name: Sheldon's sedge |
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| Family: | Cyperaceae | |
| Element Code: | PMCYP03CE0 | |
| USDA Plants Symbol: | CASH | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 2B.2 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G4 |
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State Rank: |
S2 |
| Other Status: | |
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CRPR Changes: |
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| Add Date: | 1980-01-01 |
| Date Edited: | 2023-07-07 |
| Lifeform: perennial rhizomatous herb | ||||||||||||||
Blooming Period: May-Aug
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Elevation:
1200 - 2012 meters 3935 - 6600 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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| Threat List Total: | 13 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 35 | 73 % |
| THREAT LIST: | ||
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| Grazing | 14 | 29% |
| Non-native plant impacts | 12 | 25% |
| Road/trail construction/maint. | 11 | 22% |
| Other | 5 | 10% |
| ORV activity | 3 | 6% |
| Altered flood/tidal/hydrologic regime | 2 | 4% |
| Dam/Inundation | 2 | 4% |
| Development | 2 | 4% |
| Recreational use (non-ORV) | 2 | 4% |
| Erosion/runoff | 1 | 2% |
| Foot traffic/trampling | 1 | 2% |
| Degraded water quality | 1 | 2% |
| Logging | 1 | 2% |
| Total Occurrences: | 48 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 3 | 10 | 6 | 1 | 1 | 27 |
| Occurrence Status: | |||||
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| Historical >20 Years | 25 | ||||
| Recent <=20 Years | 23 | ||||
| Presence: | |||||
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| Presumed Extant | 47 | ||||
| Possibly Extirpated | 1 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA), Idaho (ID), Nevada (NV), Oregon (OR), Utah (UT), Washington (WA) |
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California Counties and Islands: Name (Code) Lassen (LAS), Modoc (MOD), Placer (PLA), Plumas (PLU) |
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Quads: Name (Quad Code) Adin (4112028), Alturas (4112045), Antelope Lake (4012025), Babcock Peak (4012015), Big Swamp (4112121), Blairsden (3912075), Caribou (4012112), Cold Spring Mtn. (4112013), Crescent Mills (4012018), Crocker Mtn. (3912084), Donica Mtn. (4112132), Dutch Flat (3912027), Genesee Valley (4012016), Greenville (4012028), Grizzly Valley (3912085), Halls Canyon (4112131), Infernal Caverns (4112035), Janesville (4012035), Jess Valley (4112023), Johnsville (3912076), Kettle Rock (4012026), Lane Reservoir (4112017), Likely (4112025), Portola (3912074), Soup Creek (4112033), Susanville (4012046), Westwood East (4012038) |
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Notes:
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Presumed Extant
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