Taxon Report
Sidalcea hickmanii Greene ssp. viridis C.L. Hitchc.Marin checkerbloom |
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Taxon Summary
Sidalcea hickmanii ssp. viridis, commonly known as Marin checkerbloom, is a perennial herb in the Malvaceae that is found only in California. It occurs within Chaparral, growing at elevations from 50 to 430 meters. Sidalcea hickmanii ssp. viridis is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
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Scientific Name: |
Sidalcea hickmanii Greene ssp. viridis C.L. Hitchc. |
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Common Name: |
Marin checkerbloom |
| Family: | Malvaceae |
| Element Code: | PDMAL110A4 |
| USDA Plants Symbol: | SIHIV |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jun | May-Jun |
| Elevation: | 50-430 (165-1410) |
| General Habitats: | Chaparral |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G2TH |
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State Rank: |
SH |
| 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: | 4 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 1 |
| Unknown (U) | 3 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Marin (MRN) | |
| Quads: Name (Quad Code) | |
| Bolinas (3712286), San Geronimo (3812216) | |
Threat List Data from the CNDDB
| Threat List Total: | 2 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 1 | 25 % | |
| Foot traffic/trampling | 1 | 25% |
| Improper burning regime | 1 | 25% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 February 2025].