Taxon Report
Erigeron supplex Graysupple daisy |
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Taxon Summary
Erigeron supplex, commonly known as supple daisy, is a perennial herb in the Asteraceae that is found only in California. It occurs within Coastal bluff scrub, and Coastal prairie, growing at elevations from 10 to 50 meters. Erigeron supplex is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Erigeron supplex Gray |
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Common Name: |
supple daisy |
| Family: | Asteraceae |
| Element Code: | PDAST3M3Z0 |
| USDA Plants Symbol: | ERSU4 |
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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: | 10-50 (35-165) |
| General Habitats: | Coastal bluff scrub, Coastal prairie |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_UCBG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 21 |
| Element Occurrence Ranks: | |
| Excellent (A) | 1 |
| Good (B) | 6 |
| Fair (C) | 4 |
| Poor (D) | 1 |
| None (X) | 1 |
| Unknown (U) | 8 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Marin (MRN)*, Mendocino (MEN), Sonoma (SON) | |
| Quads: Name (Quad Code) | |
| Drakes Bay (3812218)*, Gualala (3812375), Mendocino (3912337), Plantation (3812353), Point Arena (3812386), Saunders Reef (3812376), Stewarts Point (3812364) | |
Threat List Data from the CNDDB
| Threat List Total: | 8 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 12 | 57 % | |
| Development | 7 | 33% |
| Non-native plant impacts | 3 | 14% |
| Road/trail construction/maint. | 3 | 14% |
| Vandalism/dumping/litter | 1 | 4% |
| Other | 1 | 4% |
| Recreational use (non-ORV) | 1 | 4% |
| Grazing | 1 | 4% |
| Logging | 1 | 4% |
Notes
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Need historical quad for HUM Co. Threatened by coastal development. Possibly threatened by trampling, non-native plants, and pipeline construction. See Proceedings of the American Academy of Arts and Sciences |
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Threats: |
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Taxonomy: |
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 October 2025].