Taxon Report
Calystegia subacaulis Hook. & Arn. ssp. episcopalis BrummittCambria morning-glory |
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Classification
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Scientific Name: |
Calystegia subacaulis Hook. & Arn. ssp. episcopalis Brummitt |
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Common Name: |
Cambria morning-glory |
| Family: | Convolvulaceae |
| Element Code: | PDCON040J1 |
| USDA Plants Symbol: | CASUE |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb |
| Blooming Period: (Mar)Apr-Jun(Jul) | (Mar)Apr-Jun(Jul) |
| Elevation: | 30-500 (100-1640) |
| General Habitats: | Chaparral, Cismontane woodland, Coastal prairie, Valley and foothill grassland |
| Microhabitat: | Clay (usually) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.2 |
| Global Rank: | G3T2? |
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State Rank: |
S2? |
| 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: | 25 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 5 |
| Fair (C) | 12 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 4 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| San Luis Obispo (SLO) | |
| Quads: Name (Quad Code) | |
| Arroyo Grande NE (3512025), Cambria (3512151), Cayucos (3512048), Lopez Mtn. (3512035), Morro Bay North (3512047), Morro Bay South (3512037), Nipomo (3512014), Pico Creek (3512152), Piedras Blancas (3512163), Pismo Beach (3512026), Port San Luis (3512027), San Luis Obispo (3512036) | |
Threat List Data from the CNDDB
| Threat List Total: | 11 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 22 | 88 % | |
| Grazing | 12 | 48% |
| Development | 11 | 44% |
| Non-native plant impacts | 11 | 44% |
| Military operations | 9 | 36% |
| Feral pigs | 8 | 32% |
| Improper burning regime | 7 | 28% |
| Other | 6 | 24% |
| Recreational use (non-ORV) | 1 | 4% |
| Road/trail construction/maint. | 1 | 4% |
| Foot traffic/trampling | 1 | 4% |
| Erosion/runoff | 1 | 4% |
Notes
| Threatened by development. Possibly threatened by alteration of fire regimes, feral pigs, grazing, mining, trampling, military activities, non-native plants, vehicles, and pipeline construction. Potentially threatened by foot traffic. Intergrades with C. collina ssp. venusta. See Kew Bulletin 35(2):327 (1980) for original description. |
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Threats: |
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Taxonomy: |
Selected References
| Proposed List change from List 1B.2 to List 4.2 (2011) |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].