Taxon Details

Ditaxis serrata var. californica

California ditaxis

View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist

Taxon Summary:

Ditaxis serrata var. californica, commonly known as California ditaxis, is a perennial herb in the Euphorbiaceae that is found in California and elsewhere. It occurs within Sonoran desert scrub, growing at elevations from 30 to 1000 meters. Ditaxis serrata var. californica is ranked 3.2, Plants About Which We Need More Information, A Review List; Moderately threatened in California.

Classification

Scientific Name: Ditaxis serrata (Torr.) A.A. Heller var. californica (Bdg.) Steinmann & Felger
Common Name: California ditaxis
Family:	Euphorbiaceae
Element Code:	PDEUP08050
USDA Plants Symbol:
Synonyms/Other Names: Ditaxis californica (Bdg.) Pax & K. Hoffm.
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	3.2
Fed List:	None
State List:	None
Global Rank:	G5T3T4
State Rank:	S2?
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Mar-Dec

Elevation:
30 - 1000 meters
100 - 3280 feet

General Habitats:

Sonoran desert scrub

Microhabitat Details:

Microhabitat:

Notes

Notes: Move to List 1B? Known in SO from only one collection. Threatened by vehicles. A synonym of D. californica in The Jepson Manual. See Madroño 42(4):455-457 (1995) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	10	42 %
Development	5	20%
ORV activity	5	20%
Road/trail construction/maint.	2	8%
Other	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					24
A	B	C	D	X	U
1	1	1	0	0	21

Occurrence Status:
Historical >20 Years	13
Recent <=20 Years	11

Presence:
Presumed Extant	24
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Sonora, Mexico (SO)*

California Counties and Islands: Name (Code)
Riverside (RIV), San Diego (SDG)

Quads: Name (Quad Code)
Arica Mountains (3411418), Blythe NE (3311465), Corn Spring (3311563), Cottonwood Basin (3311568), Cottonwood Spring (3311567), Desert Center (3311564), Harper Canyon (3311612), Hayfield (3311566), Hayfield Spring (3311565), La Quinta (3311663), Mortmar (3311558), Pilot Mountain (3311553), Victory Pass (3311574)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory