CNPS Inventory Plant Detail

Chamaesyce platysperma

Common Name:	flat-seeded spurge
Family:	Euphorbiaceae
Synonyms:	Euphorbia platyspermum
Element Code:	PDEUP0D1X0
Full Name:	Chamaesyce platysperma (Engelm.) Shinners
USDA PLANTS Symbol:	CHPL3

Biology
Lifeform: annual herb Blooming Period: February - September Habitat: • Desert dunes • Sonoran desert scrub (sandy)

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S1 S1: Critically Imperiled. Global Rank: G3 G3: Vulnerable.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 4
Element Occurrence Ranks:

A B C D X U

0 0 0 0 0 4

Population Status:

Historic >20 yrs	Recent <=20 yrs
4	0

Presence:

Present Extant	Possibly Extirpated	Extirpated
4	0	0

Notes
Known in CA from only four herbarium collections (need confirmation) and a 1987 collection from IMP Co. See Desert Plants 2(2):104-105 (1980) for species account. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1980-01-01 Last Update: 2010-03-15

Location

Elevation: 65 - 100 meters

California Endemic: no

States: California, Arizona, Sonora

California Counties and Islands: name (code)
Imperial (IMP), Riverside (RIV), San Bernardino (SBD) ?, San Diego (SDG)

Quads: name (DWR code) USGS code
Superstition Mtn. (017A) 32115H7, Kane Spring (030D) 33115A7, Earthquake Valley (032C) 33116A4, Cathedral City (082C) 33116G4, Old Woman Springs (130B)? 34116D6

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

459

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

-116.375,33.75