Taxon Report
Carex petasata DeweyLiddon's sedge |
 ©2019 Sierra Pacific Industries |
Taxon Summary
Carex petasata, commonly known as Liddon's sedge, is a perennial herb in the Cyperaceae that is found in California and elsewhere. It occurs within Broadleafed upland forest, Lower montane coniferous forest, Meadows and seeps, and Pinyon and juniper woodland, growing at elevations from 600 to 3320 meters. Carex petasata is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.Classification
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Scientific Name: |
Carex petasata Dewey |
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Common Name: |
Liddon's sedge |
| Family: | Cyperaceae |
| Element Code: | PMCYP03AE0 |
| USDA Plants Symbol: | CAPE7 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jul | May-Jul |
| Elevation: | 600-3320 (1970-10895) |
| General Habitats: | Broadleafed upland forest, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.3 |
| Global Rank: | G5 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 73 |
| Element Occurrence Ranks: | |
| Excellent (A) | 6 |
| Good (B) | 38 |
| Fair (C) | 9 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 20 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Alpine (ALP), Inyo (INY), Lassen (LAS), Modoc (MOD), Mono (MNO), Plumas (PLU), Shasta (SHA) | |
| Quads: Name (Quad Code) | |
| Antelope Mtn. (4012058), Bullard Lake (4012078), Champs Flat (4012068), Corders Reservoir (4012172), Eagle Peak (4112032), Emerson Peak (4112022), Fales Hot Springs (3811934), Harvey Mtn. (4012161), Heenan Lake (3811966), Jellico (4012173), Kearsarge Peak (3611873), Knox Mountain (4112026), Lake Annie (4112081), Lane Reservoir (4112017), Mahogany Ridge (4112055), Mammoth Mtn. (3711961), Pine Creek Valley (4012151), Poison Lake (4012162), Sheepshead (4012077), Spalding Tract (4012067), Straylor Lake (4012171), Surprise (4112054), Swain Mountain (4012141), Swains Hole (4012163), Topaz Lake (3811965), Twain (4012111) | |
Threat List Data from the CNDDB
| Threat List Total: | 12 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 52 | 71 % | |
| Grazing | 37 | 50% |
| Logging | 35 | 47% |
| Improper burning regime | 10 | 13% |
| Recreational use (non-ORV) | 7 | 9% |
| Foot traffic/trampling | 6 | 8% |
| ORV activity | 6 | 8% |
| Non-native plant impacts | 3 | 4% |
| Other | 2 | 2% |
| Wood cutting or brush clearing | 2 | 2% |
| Altered flood/tidal/hydrologic regime | 1 | 1% |
| Development | 1 | 1% |
| Erosion/runoff | 1 | 1% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].