Taxon Details
Adiantum shastense
Shasta maidenhair fern
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©2015 Julie Kierstead |
©2016 Julie Kierstead |
©2015 Len Lindstrand III |
Taxon Summary:
Adiantum shastense, commonly known as Shasta maidenhair fern, is a perennial herb in the Pteridaceae that is found only in California. It occurs within Lower montane coniferous forest, growing at elevations from 330 to 1535 meters. Adiantum shastense is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.|
Scientific Name: Adiantum shastense Huiet & A.R. Sm. |
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Common Name: Shasta maidenhair fern |
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| Family: | Pteridaceae | |
| Element Code: | PPADI030W0 | |
| USDA Plants Symbol: | ADSH | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 4.3 |
| 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 4.3 on 2016-11-18 |
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| Add Date: | 2016-11-18 |
| Date Edited: | 2021-09-27 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-Aug
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Elevation:
330 - 1535 meters 1085 - 5035 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Originally identified as A. jordanii and also similar to A. capillus-veneris; distinguished from these species in having diamond shaped pinnules and by its perennial habit, with the presence of old fronds underlying its fresh fronds. See PhytoKeys 53:73-81 (2015) for original description. |
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Threats: |
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Taxonomy: |
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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: | |||||
|---|---|---|---|---|---|
| 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) California (CA) |
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California Counties and Islands: Name (Code) Shasta (SHA) |
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Quads: Name (Quad Code) Big Bend (4112118), Bohemotash Mtn. (4012274), Bollibokka Mtn. (4012282), Chalk Mtn. (4012187), Chicken Hawk Hill (4112214), Devils Rock (4012271), Girard Ridge (4112222), Goose Gap (4012281), Hanland Peak (4012283), Lake McCloud (4112221), Lamoine (4012284), Minnesota Mtn. (4012272), Montgomery Creek (4012178), Oak Run (4012261), O'Brien (4012273), Project City (4012263), Roaring Creek (4012188), Shasta Dam (4012264), Tombstone Mtn. (4112213), Yellowjacket Mtn. (4112212) |
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Notes:
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Presumed Extant
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