Species Details

Adiantum shastense

Shasta maidenhair fern

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Photo of Adiantum shastense
©2015 Julie Kierstead
Photo of Adiantum shastense
©2016 Julie Kierstead
Photo of Adiantum shastense
©2015 Len Lindstrand III
Scientific Name:
Adiantum shastense Huiet & A.R. Sm.
Common Name:
Shasta maidenhair fern
Family: Pteridaceae
Element Code: PPADI030W0
USDA Plants Symbol: ADSH
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: Apr-Aug
Elevation:
330 - 1535 meters
1085 - 5035 feet
General Habitat:
  • Lower montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Carbonate (sometimes)
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.
Threats:
Taxonomy:
Other:
Total Occurrences: 0
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presence:
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA)
Quads: Name (Quad Code)
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), Oak Run (4012261), O'Brien (4012273), Project City (4012263), Roaring Creek (4012188), Shasta Dam (4012264), Tombstone Mtn. (4112213), Yellowjacket Mtn. (4112212)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads