Taxon Report
Sidalcea oregana (Nutt.) Gray ssp. valida (Greene) C.L. Hitchc.Kenwood Marsh checkerbloom |
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Classification
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Scientific Name: |
Sidalcea oregana (Nutt.) Gray ssp. valida (Greene) C.L. Hitchc. |
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Common Name: |
Kenwood Marsh checkerbloom |
| Family: | Malvaceae |
| Element Code: | PDMAL110K5 |
| USDA Plants Symbol: | SIORV |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial rhizomatous herb |
| Blooming Period: Jun-Sep | Jun-Sep |
| Elevation: | 115-150 (375-490) |
| General Habitats: | Marshes and swamps |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G5T1 |
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State Rank: |
S1 |
| State List: | CE |
| Fed List: | FE |
| Other Status: | SB_CalBG/RSABG; SB_UCBG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 2 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 2 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Sonoma (SON) | |
| Quads: Name (Quad Code) | |
| Kenwood (3812245), Mount St. Helena (3812266) | |
Threat List Data from the CNDDB
| Threat List Total: | 6 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 100 % | |
| Grazing | 2 | 100% |
| Non-native plant impacts | 2 | 100% |
| Other | 2 | 100% |
| Surface water diversion | 1 | 50% |
| Agriculture | 1 | 50% |
| Foot traffic/trampling | 1 | 50% |
Notes
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Known from only two occurrences. Threatened by grazing and hydrological alteration, and possibly by competition with native and non-native plants. See Pittonia |
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Threats: |
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Taxonomy: |
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].