Taxon Report

Botrychium crenulatum W. Wagner

scalloped moonwort

Print Report


© 2016 Steve Matson

  Classification
Scientific Name:
 Botrychium crenulatum W. Wagner
Common Name:
 scalloped moonwort
Family: Ophioglossaceae
Element Code: PPOPH010L0
USDA Plants Symbol: BOCR
Synonyms/Other Names:

Ecology and Life History
Lifeform: perennial rhizomatous herb
Blooming Period: Jun-Sep Jun-Sep
Elevation: 1268-3280 (4160-10760)
General Habitats: Bogs and fens, Lower montane coniferous forest, Marshes and swamps, Meadows and seeps, Upper montane coniferous forest
Microhabitat:
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: 2B.2
Global Rank: G4
State Rank:
 S3
State List: None
Fed List: None
Other Status: USFS_S
CRPR Changes:
  • changed from 2.2 to 2B.2 on 2013-06-12

Occurrence Data from the CNDDB
Total Occurrences: 155
Element Occurrence Ranks:
   Excellent (A) 9
   Good (B) 40
   Fair (C) 33
   Poor (D) 8
   None (X) 0
   Unknown (U) 65

Location
California Endemic:  False
California Counties and Islands: Name (Code)
Alpine (ALP), Amador (AMA), Butte (BUT), Calaveras (CAL), Colusa (COL), El Dorado (ELD), Fresno (FRE), Inyo (INY), Lassen (LAS), Los Angeles (LAX), Modoc (MOD), Mono (MNO), Nevada (NEV), Placer (PLA), Plumas (PLU), San Bernardino (SBD), Shasta (SHA), Sierra (SIE), Siskiyou (SIS), Tehama (TEH), Trinity (TRI), Tulare (TUL), Tuolumne (TUO)
Quads: Name (Quad Code)
Ash Creek Butte (4112241), Bear River Reservoir (3812052), Big Bear Lake (3411628), Blairsden (3912075), Blanco Mtn. (3711842), Bloody Mtn. (3711858), Boards Crossing (3812032), Butte Meadows (4012115), Calaveras Dome (3812042), Caldor (3812054), Casa Vieja Meadows (3611823), Cherry Lake North (3811918), Chicken Hawk Hill (4112214), Cisco Grove (3912035), Convict Lake (3711857), Covington Mill (4012287), Coyote Flat (3711824), Crocker Mtn. (3912084), Crooked Creek (3711841), Crystal Lake (3411737), Dardanelles Cone (3811947), Davis Creek (4112063), Dogtooth Peak (3711921), Eagle Peak (4112032), Emerald Bay (3812081), English Mtn. (3912045), Forest Falls (3411618), Fouts Springs (3912236), Gallatin Peak (4012056), Grays Peak (4012146), Hatchet Mtn. Pass (4012177), Hobart Mills (3912042), Homewood (3912012), Hull Creek (3812011), Humboldt Peak (4012124), Humbug Valley (4012123), Independence Lake (3912043), Jacks Backbone (4012166), Jonesville (4012114), Kaiser Peak (3711932), Kimshew Point (3912184), Kyburz (3812073), Lassen Peak (4012145), Leek Spring Hill (3812063), Loon Lake (3812083), Meeks Bay (3912011), Miller Mtn. (4012167), Mineral (4012135), Monache Mountain (3611822), Moonridge (3411627), Mount Dana (3711982), Mount San Antonio (3411736), Mt. Barcroft (3711852), Mt. Bidwell (4112082), Mt. Fillmore (3912067), Mt. Harkness (4012143), Mt. Morgan (3711846), Mt. Patterson (3811943), Mumbo Basin (4112225), Norden (3912033), Onyx Peak (3411626), Peddler Hill (3812053), Pegleg Mtn. (4012048), Red Cinder (4012142), Robbs Peak (3812084), Rockbound Valley (3812082), Roop Mountain (4012047), San Gorgonio Mtn. (3411617), Sattley (3912054), Seven Lakes Basin (4112224), Shields Creek (4112043), Skunk Ridge (4112117), Soapstone Hill (3912173), Soup Creek (4112033), South Lake Tahoe (3811988), Station Peak (3711851), Susanville (4012046), Sweetwater Creek (3811942), Tahoe City (3912022), Telegraph Peak (3411735), Templeton Mtn. (3611832), Tioga Pass (3711983), Tragedy Spring (3812062), Viola (4012156), Warren Peak (4112042), West Haight Mtn. (4112251), Westwood East (4012038), Westwood West (4012131), Willow Ranch (4112083)

Threat List Data from the CNDDB

Threat List Total: 12
EOs with Threat Listed: Total EOs % of EOs
80 52 %
Logging 32 20%
Grazing 28 18%
Foot traffic/trampling 18 11%
Other 16 10%
Road/trail construction/maint. 12 7%
Recreational use (non-ORV) 8 5%
Altered flood/tidal/hydrologic regime 7 4%
Erosion/runoff 6 3%
ORV activity 4 2%
Improper burning regime 2 1%
Wood cutting or brush clearing 2 1%
Groundwater pumping 1 0%

Notes
Scattered but not common anywhere in CA. On watch list in NV, candidate for state listing in OR, and state-listed as Sensitive in WA. Threatened by foot traffic, grazing, trampling, recreational activities, fuel reduction projects, road deconstruction, and vehicles. Possibly threatened by logging and hydrological alterations. See American Fern Journal 71(1):21 (1981) for original description, and Madroño 36(2):131-136 (1989) for distributional information.
Threats:
Threatened by foot traffic, grazing, trampling, recreational activities, fuel reduction projects, and road deconstruction. Possibly threatened by logging and hydrological alterations.
Taxonomy:

Selected References

Botrychium crenulatum account for potential Species of Conservation Concern evaluation (2021)
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 28 December 2024].