Taxon Report
Atriplex coronata Wats. var. notatior Jeps.San Jacinto Valley crownscale |
 © 2008 Larry Sward |
Taxon Summary
Atriplex coronata var. notatior, commonly known as San Jacinto Valley crownscale, is a annual herb in the Chenopodiaceae that is found only in California. It occurs within Playas, Valley and foothill grassland (mesic), and Vernal pools, growing at elevations from 139 to 500 meters. Atriplex coronata var. notatior is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
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Scientific Name: |
Atriplex coronata Wats. var. notatior Jeps. |
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Common Name: |
San Jacinto Valley crownscale |
| Family: | Chenopodiaceae |
| Element Code: | PDCHE040C2 |
| USDA Plants Symbol: | ATCON |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Apr-Aug | Apr-Aug |
| Elevation: | 139-500 (455-1640) |
| General Habitats: | Playas, Valley and foothill grassland, Vernal pools |
| Microhabitat: | Alkaline |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G4T1 |
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State Rank: |
S1 |
| State List: | None |
| Fed List: | FE |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 16 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 6 |
| Fair (C) | 1 |
| Poor (D) | 0 |
| None (X) | 1 |
| Unknown (U) | 5 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Riverside (RIV) | |
| Quads: Name (Quad Code) | |
| El Casco (3311781), Lake Elsinore (3311763), Lakeview (3311771), Perris (3311772), Winchester (3311761) | |
Threat List Data from the CNDDB
| Threat List Total: | 11 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 10 | 63 % | |
| Agriculture | 5 | 31% |
| Disking | 5 | 31% |
| Non-native plant impacts | 5 | 31% |
| ORV activity | 5 | 31% |
| Development | 4 | 25% |
| Other | 3 | 18% |
| Road/trail construction/maint. | 3 | 18% |
| Grazing | 2 | 12% |
| Altered flood/tidal/hydrologic regime | 1 | 6% |
| Dam/Inundation | 1 | 6% |
| Vandalism/dumping/litter | 1 | 6% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 13 November 2025].