Species Details

Proboscidea althaeifolia

desert unicorn-plant

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Classification

Scientific Name: Proboscidea althaeifolia (Benth.) Dcne.
Common Name: desert unicorn-plant
Family:	Martyniaceae
Element Code:	PDPED06010
USDA Plants Symbol:	PRAL4
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.3
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S4
Other Status:	SB_CalBG/RSABG
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2022-06-08

Ecology and Life History

Lifeform: perennial herb

Blooming Period: May-Sep(Oct)

Elevation:
85 - 1000 meters
280 - 3280 feet

General Habitats:

Sonoran desert scrub

Microhabitat Details: gently sloping sandy flats and washes

Microhabitat:

Flats
Roadsides (sometimes)
Sandy
Slopes
Washes

Notes

Notes: Potentially threatened by solar energy development and vehicles.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Arizona (AZ), Baja California (BA), California (CA), New Mexico (NM), Sonora, Mexico (SO)

California Counties and Islands: Name (Code)
Imperial (IMP), Riverside (RIV), San Bernardino (SBD), San Diego (SDG)

Quads: Name (Quad Code)
Agua Caliente Springs (3211683), Arroyo Tapiado (3211682), Carrizo Mtn. (3211671), Chuckwalla Spring (3311542), Corn Spring (3311563), Cross Roads (3411422), Desert Center (3311564), East of Aztec Mines (3311551), East of Victory Pass (3311573), Ford Dry Lake (3311561), Hayfield Spring (3311565), Hopkins Well (3311458), Little Chuckwalla Mts. (3311541), McCoy Peak (3311467), McCoy Spring (3311468), McCoy Wash (3311466), Palo Verde (3311446), Rice (3411417), Ripley (3311456), Roosevelt Mine (3311457), Savahia Peak NW (3411446), Snaggletooth (3411456), Styx (3311487), Sweeney Pass (3211672), Thumb Peak (3311447), 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