Taxon Report
Eriogonum crocatum A. Davids.Conejo buckwheat |
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Taxon Summary
Eriogonum crocatum, commonly known as Conejo buckwheat, is a perennial herb in the Polygonaceae that is found only in California. It occurs within Chaparral, Coastal scrub, and Valley and foothill grassland, growing at elevations from 50 to 580 meters. Eriogonum crocatum is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Eriogonum crocatum A. Davids. |
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Common Name: |
Conejo buckwheat |
| Family: | Polygonaceae |
| Element Code: | PDPGN081G0 |
| USDA Plants Symbol: | ERCR3 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Apr-Jul | Apr-Jul |
| Elevation: | 50-580 (165-1905) |
| General Habitats: | Chaparral, Coastal scrub, Valley and foothill grassland |
| Microhabitat: | Rocky, Volcanic |
| Microhabitat Details: | Conejo volcanic outcrops |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G1 |
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State Rank: |
S1 |
| State List: | CR |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 13 |
| Element Occurrence Ranks: | |
| Excellent (A) | 1 |
| Good (B) | 7 |
| Fair (C) | 1 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 4 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Ventura (VEN) | |
| Quads: Name (Quad Code) | |
| Camarillo (3411921), Newbury Park (3411828), Thousand Oaks (3411827), Triunfo Pass (3411818) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 10 | 77 % | |
| Development | 5 | 38% |
| Recreational use (non-ORV) | 4 | 30% |
| Road/trail construction/maint. | 3 | 23% |
| Non-native plant impacts | 3 | 23% |
| Over-collecting/poaching | 3 | 23% |
| Erosion/runoff | 2 | 15% |
| Foot traffic/trampling | 2 | 15% |
| Grazing | 2 | 15% |
| Mining | 1 | 7% |
| Vandalism/dumping/litter | 1 | 7% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 4 November 2025].