Species Details

Boechera constancei

Constance's rockcress

  Download Report   Calflora    eFlora    CCH    CalPhotos  
No Photo Available
Scientific Name:
Boechera constancei (Rollins) Al-Shehbaz
Common Name:
Constance's rockcress
Family: Brassicaceae
Element Code: PDBRA06090
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: May-Jul
JFMAMJJASOND
Elevation:
975 - 2025 meters
3200 - 6645 feet
General Habitats:
  • Chaparral
  • Lower montane coniferous forest
  • Upper montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Rocky
  • Serpentine
Notes:
Threatened by road widening, logging, mining, and urbanization. Possibly threatened by vehicles. See Contributions from the Gray Herbarium 201:4-6 (1971) for original description.
Threats:
Taxonomy:
Threat List Total: 10
Total EOs % of EOs
EOs with Threat Listed: 40 68 %
THREAT LIST:
Logging 29 49%
Road/trail construction/maint. 12 20%
Mining 7 11%
Other 5 8%
Wood cutting or brush clearing 3 5%
Total Occurrences: 59
Element Occurrence Ranks:
A B C D X U
4 20 3 1 0 31
Occurrence Status:
Historical >20 Years 34
Recent <=20 Years 25
Presence:
Presumed Extant 59
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Plumas (PLU), Sierra (SIE)
Quads: Name (Quad Code)
Belden (4012113), Bucks Lake (3912182), Canyondam (4012121), Caribou (4012112), Crescent Mills (4012018), Greenville (4012028), La Porte (3912068), Meadow Valley (3912181), Onion Valley (3912078), Quincy (3912088), Spring Garden (3912087), Twain (4012111)
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
Click on quad for name. Hold Shift Key to use mouse scroll wheel