Species Details
Pentagramma rebmanii
Rebman's silverback fern
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Scientific Name: Pentagramma rebmanii (Winner & M.G. Simpson) Schuettp. & Windham |
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Common Name: Rebman's silverback fern |
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| Family: | Pteridaceae | |
| Element Code: | PPADI0Q030 | |
| USDA Plants Symbol: | ||
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.3 |
| Fed List: | None |
| State List: | None |
| Global Rank: | G3 |
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State Rank: |
S3 |
| Other Status: | |
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CRPR Changes: added to 1B.3 on 2024-05-21 |
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| Add Date: | 2024-05-21 |
| Date Edited: | 2024-10-02 |
| Lifeform: perennial rhizomatous herb | ||||||||||||||
Blooming Period:
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Elevation:
175 - 1760 meters 575 - 5775 feet |
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General Habitats:
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| Microhabitat Details: Seeps and other seasonally moist sites on ± shaded, generally north-facing, rocky slopes or canyon bottoms. | ||||||||||||||
Microhabitat:
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Notes: |
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Threats: Potentially threatened by development. |
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Taxonomy: Rare, unnamed polyploids resemble this diploid species. Pentagramma rebmanii has a dense, white farina (powdery-waxy secretion) on the lower leaf surface but differs from other Pentagramma taxa in having sparse, white farina on the upper leaf surface as well. |
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| Threat List Total: | 0 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 0 | 0 % |
| THREAT LIST: | ||
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| Total Occurrences: | 0 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 0 | 0 | 0 | 0 | 0 | 0 |
| Occurrence Status: | |||||
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| Historical >20 Years | 0 | ||||
| Recent <=20 Years | 0 | ||||
| Presence: | |||||
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| Presumed Extant | 0 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) Baja California (BA), California (CA) |
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California Counties and Islands: Name (Code) |
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Quads: Name (Quad Code) |
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Notes:
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Map
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Presumed Extant
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| CNPS Status Review: | Pentagramma rebmanii: Proposed Addition to CRPR 1B.3 (2024) |
| Original Description: | Madroño 54(4): 345 (2008) |
| Revised Nomenclature: |
Systematic Botany 40(3): 641 (2015) |
| Revised Nomenclature: | Journal of the Botanical Research Institute of Texas 17(1): 28 (2023) |