Species Details

Cardamine pachystigma var. dissectifolia

dissected-leaved toothwort

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Classification

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: Dentaria pachystigma var. dissectifolia

Conservation Status

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

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Feb-May

Elevation:
255 - 2100 meters
835 - 6890 feet

General Habitats:

Chaparral
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Rocky
Serpentine (usually)

Notes

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 Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	5	26 %
Road/trail construction/maint.	4	21%
ORV activity	2	10%
Biocides	1	5%
Improper burning regime	1	5%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					19
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

Location

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.

Regional Map

Map

Presumed Extant

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Selected References

CNPS Status Review:

Proposal to keep as CRPR 3, G3G5T3Q / S3 (2012)