Taxon Details

Cardamine pachystigma var. dissectifolia

dissected-leaved toothwort

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Taxon Summary:

Cardamine pachystigma var. dissectifolia, commonly known as dissected-leaved toothwort, is a perennial rhizomatous herb in the Brassicaceae that is found only in California. It occurs within Chaparral, and Lower montane coniferous forest, growing at elevations from 255 to 2100 meters. Cardamine pachystigma var. dissectifolia is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Scientific Name:
Cardamine pachystigma (Wats.) Roll. var. dissectifolia (Detl.) Roll.
Common Name:
dissected-leaved toothwort
Family: Brassicaceae
Element Code: PDBRA0K1B1
USDA Plants Symbol: CAPAD2
Synonyms/Other Names:
Name Status: JEF, FNA, POWO,
IPNI, Tropicos
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G3G5T2Q
State Rank:
S2
Other Status: BLM_S
CRPR Changes:
changed from 3 to 1B.2 on 2012-04-10
Add Date: 1988-01-01
Date Edited: 2024-11-05
Lifeform: perennial rhizomatous herb
Blooming Period: Feb-May
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Elevation:
255 - 2100 meters
835 - 6890 feet
General Habitats:
  • Chaparral
  • Lower montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Rocky
  • Serpentine (usually)
Notes:
Previously on List 3 due to lack of location, rarity, and endangerment information; location information still needed. Threatened by non-native plants, road and trail maintenance, vehicles, and alteration of fire regimes. Many collections lack tubers, which aid in identification. A synonym of C. californica in TJM 2. See American Journal of Botany 23:575 (1936) for original description, and Harvard Papers in Botany 4:43-48 (1993) for revised nomenclature.
Threats:
Threatened by non-native plants, road and trail maintenance, vehicles, and alteration of fire regimes.
Taxonomy:
Many collections lack tubers, which aid in identification. A synonym of C. californica in TJM 2.
Threat List Total: 4
Total EOs % of EOs
EOs with Threat Listed: 5 26 %
THREAT LIST:
Road/trail construction/maint. 4 21%
ORV activity 2 10%
Biocides 1 5%
Improper burning regime 1 5%
Total Occurrences: 19
Element Occurrence Ranks:
A B C D X U
0 3 9 2 0 5
Occurrence Status:
Historical >20 Years 6
Recent <=20 Years 13
Presence:
Presumed Extant 19
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Butte (BUT)
Quads: Name (Quad Code)
Berry Creek (3912164), Cherokee (3912165), Clipper Mills (3912152), Cohasset (3912186), Paradise East (3912175), Paradise West (3912176), Pulga (3912174), Stirling City (3912185)
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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