Taxon Report

Botrypus virginianus (L.) Michx.

rattlesnake fern

Print Report


©2003 Martin J. Lenz

  Classification

Scientific Name:
Botrypus virginianus (L.) Michx.
Common Name:
rattlesnake fern
Family: Ophioglossaceae
Element Code: PPOPH010H0
USDA Plants Symbol:
Synonyms/Other Names:
  • Botrychium virginianum

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jun-Sep Jun-Sep
Elevation: 715-1355 (2345-4445)
General Habitats: Bogs and fens, Lower montane coniferous forest, Meadows and seeps, Riparian forest
Microhabitat: Streambanks
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 41
Element Occurrence Ranks:
   Excellent (A) 6
   Good (B) 19
   Fair (C) 10
   Poor (D) 0
   None (X) 0
   Unknown (U) 6
California Endemic:  False
California Counties and Islands: Name (Code)
Mendocino (MEN), Shasta (SHA), Siskiyou (SIS), Trinity (TRI)
Quads: Name (Quad Code)
Big Bend (4112118), Buck Rock (3912288), City of Mount Shasta (4112233), Dunsmuir (4112223), Eaton Peak (4112238), Girard Ridge (4112222), Hagaman Gulch (4012157), Hatchet Mtn. Pass (4012177), Hennessy Peak (4012375), Jacks Backbone (4012166), Leech Lake Mtn. (3912381), Miller Mtn. (4012167), Montgomery Creek (4012178), Mumbo Basin (4112225), Roaring Creek (4012188), Rush Creek Lakes (4012278), Skunk Ridge (4112117), Tangle Blue Lake (4112226), Tombstone Mtn. (4112213), Viola (4012156), Whitmore (4012168)

Threat List Data from the CNDDB

Threat List Total: 7
EOs with Threat Listed: Total EOs % of EOs
31 76 %
Logging 31 75%
Foot traffic/trampling 2 4%
Grazing 1 2%
Insufficient population/stand size 1 2%
Other 1 2%
Road/trail construction/maint. 1 2%
Altered flood/tidal/hydrologic regime 1 2%

Notes

Threats:
Possibly threatened by logging.
Taxonomy:
Not in TJM (1993).

Selected References

Botrypus virginianus profile for potential Species of Conservation Concern evaluation (2022)
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 9 January 2025].