Taxon Report
Botrychium hesperium (Maxon & R.T. Clausen) W.H. Wagner & Lellingerwestern moonwort |
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Taxon Summary
Botrychium hesperium, commonly known as western moonwort, is a perennial herb in the Ophioglossaceae that is found in California and elsewhere. It occurs within Alpine boulder and rock field, growing at elevations from 3235 to 3235 meters. Botrychium hesperium is ranked 2B.1, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Seriously threatened in California.Classification
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Scientific Name: |
Botrychium hesperium (Maxon & R.T. Clausen) W.H. Wagner & Lellinger |
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Common Name: |
western moonwort |
| Family: | Ophioglossaceae |
| Element Code: | PPOPH010Q0 |
| USDA Plants Symbol: | BOHE5 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: | |
| Elevation: | 3235-3235 (10615-10615) |
| General Habitats: | Alpine boulder and rock field |
| Microhabitat: | |
| Microhabitat Details: | Wet alpine meadow |
Conservation Status
| CA Rare Plant Rank: | 2B.1 |
| Global Rank: | |
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State Rank: |
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| 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: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Quads: Name (Quad Code) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Selected References
| Proposed addition to CRPR 2B.2, G4 / S1 (2026) |
| American Fern Journal 71: 92 (1981) |
Citation
California Native Plant Society, Rare Plant Program. 2026. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 1 July 2026].