Species Details

Polystichum kruckebergii

Kruckeberg's sword fern

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Photo of Polystichum kruckebergii
© 2021 Scot Loring
Photo of Polystichum kruckebergii
©2021 Scot Loring
Photo of Polystichum kruckebergii
© 2010 Dana York
Scientific Name:
Polystichum kruckebergii W. Wagner
Common Name:
Kruckeberg's sword fern
Family: Dryopteridaceae
Element Code: PPDRY0R0C0
USDA Plants Symbol: POKR
Synonyms/Other Names:
Lifeform: perennial rhizomatous herb
Blooming Period: Jun-Aug
JFMAMJJASOND
Elevation:
2100 - 3200 meters
6890 - 10500 feet
General Habitats:
  • Subalpine coniferous forest
  • Upper montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Rocky
Notes:
SBD Co. records need verification; Parish specimens are likely P. scopulinum. Sensitive in ID, and on watch list in OR. See American Fern Journal 56:4 (1966) for original description, and Pteridologia 1:1-64 (1979) for taxonomic treatment.
Threats:
Taxonomy:
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)
Alaska (AK), California (CA), Idaho (ID), Montana (MT), Nevada (NV), Oregon (OR), Utah (UT), Washington (WA)
California Counties and Islands: Name (Code)
San Bernardino (SBD)?, Siskiyou (SIS), Tuolumne (TUO)
Quads: Name (Quad Code)
Dunderberg Peak (3811913), Marble Mountain (4112352), Medicine Lake (4112155)
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.
Presumed Extant
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