Taxon Report

Balsamorhiza macrolepis W.M. Sharp

big-scale balsamroot

Print Report


©1998 Dean Wm. Taylor

  Classification

Scientific Name:
Balsamorhiza macrolepis W.M. Sharp
Common Name:
big-scale balsamroot
Family: Asteraceae
Element Code: PDAST11061
USDA Plants Symbol: BAMA3
Synonyms/Other Names:
  • Balsamorhiza macrolepis var. macrolepis

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Mar-Jun Mar-Jun
Elevation: 45-1555 (150-5100)
General Habitats: Chaparral, Cismontane woodland, Valley and foothill grassland
Microhabitat: Serpentine (sometimes)
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 51
Element Occurrence Ranks:
   Excellent (A) 8
   Good (B) 10
   Fair (C) 2
   Poor (D) 0
   None (X) 2
   Unknown (U) 29
California Endemic:  True
California Counties and Islands: Name (Code)
Alameda (ALA), Amador (AMA), Butte (BUT), Colusa (COL), El Dorado (ELD), Lake (LAK), Mariposa (MPA), Napa (NAP), Placer (PLA), Santa Clara (SCL), Shasta (SHA), Solano (SOL), Sonoma (SON), Tehama (TEH), Tuolumne (TUO)
Quads: Name (Quad Code)
Ackerson Mtn. (3711977), Altamont (3712166)*, Amador City (3812047), Ascension Mtn. (3711978), Bartlett Springs (3912226), Bear Valley (3712051), Brush Creek (3912163), Chico (3912167), Cordelia (3812222), Coulterville (3712062), El Portal (3711967), Gilroy (3712115), Hayward (3712261), Hornitos (3712052), Hough Springs (3912225), Jackson (3812037), Jawbone Ridge (3712071), Jericho Valley (3812274), Knoxville (3812273), Leesville (3912224), Lincoln (3812183), Mariposa (3711948), Mitchell Gulch (4012234), Mt. Sizer (3712125), Palo Cedro (4012252), Pilot Hill (3812171), Riley Ridge (3912286), Roseville (3812173), Rosewood (4012235), San Jose East (3712137), Santa Rosa (3812246), Shippee (3912156), Sonoma (3812234), Sonora (3712084), Standard (3712083), Stumpfield Mtn. (3711947), Wilbur Springs (3912214)

Threat List Data from the CNDDB

Threat List Total: 12
EOs with Threat Listed: Total EOs % of EOs
29 57 %
Development 12 23%
Road/trail construction/maint. 7 13%
Wood cutting or brush clearing 6 11%
Grazing 5 9%
Non-native plant impacts 5 9%
Foot traffic/trampling 4 7%
Other 3 5%
ORV activity 2 3%
Recreational use (non-ORV) 1 1%
Logging 1 1%
Mining 1 1%
Vandalism/dumping/litter 1 1%

Notes

Threatened by grazing. Potentially threatened by residential or recreational development. Possibly threatened by energy development and non-native plants. See Annals of the Missouri Botanical Garden 22:132 (1935) for original description.
Threats:
Threatened by grazing. Potentially threatened by residential or recreational development. Possibly threatened by renewable energy development.
Taxonomy:

Selected References

Balsamorhiza macrolepis 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 27 December 2024].