Taxon Report
Phacelia stebbinsii Const. & HeckardStebbins' phacelia |
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Taxon Summary
Phacelia stebbinsii, commonly known as Stebbins' phacelia, is a annual herb in the Hydrophyllaceae that is found only in California. It occurs within Cismontane woodland, Lower montane coniferous forest, and Meadows and seeps, growing at elevations from 610 to 2010 meters. Phacelia stebbinsii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Phacelia stebbinsii Const. & Heckard |
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Common Name: |
Stebbins' phacelia |
| Family: | Hydrophyllaceae |
| Element Code: | PDHYD0C4D0 |
| USDA Plants Symbol: | PHST6 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: May-Jul | May-Jul |
| Elevation: | 610-2010 (2000-6595) |
| General Habitats: | Cismontane woodland, Lower montane coniferous forest, Meadows and seeps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 79 |
| Element Occurrence Ranks: | |
| Excellent (A) | 9 |
| Good (B) | 40 |
| Fair (C) | 4 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 26 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| El Dorado (ELD), Nevada (NEV), Placer (PLA) | |
| Quads: Name (Quad Code) | |
| Blue Canyon (3912036), Bunker Hill (3912014), Cisco Grove (3912035), Devil Peak (3812085), Duncan Peak (3912025), Dutch Flat (3912027), Graniteville (3912046), Greek Store (3912015), Homewood (3912012), Loon Lake (3812083), Meeks Bay (3912011), Michigan Bluff (3912016), Norden (3912033), Pollock Pines (3812075), Riverton (3812074), Robbs Peak (3812084), Royal Gorge (3912024), Soda Springs (3912034), Tunnel Hill (3812086), Wentworth Springs (3912013), Westville (3912026) | |
Threat List Data from the CNDDB
| Threat List Total: | 13 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 39 | 49 % | |
| Logging | 17 | 21% |
| Other | 14 | 17% |
| Recreational use (non-ORV) | 10 | 12% |
| Road/trail construction/maint. | 7 | 8% |
| ORV activity | 4 | 5% |
| Improper burning regime | 3 | 3% |
| Mining | 3 | 3% |
| Non-native plant impacts | 3 | 3% |
| Biocides | 2 | 2% |
| Erosion/runoff | 2 | 2% |
| Foot traffic/trampling | 1 | 1% |
| Grazing | 1 | 1% |
| Vandalism/dumping/litter | 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 12 February 2025].