Species Details

Carnegiea gigantea

saguaro

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Classification

Scientific Name: Carnegiea gigantea (Engelm.) Britt. & Rose
Common Name: saguaro
Family:	Cactaceae
Element Code:	PDCAC12010
USDA Plants Symbol:	CAGI10
Synonyms/Other Names: Cereus giganteus Engelm.

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S1
Other Status:	IUCN_LC; SB_CalBG/RSABG
CRPR Changes: changed from 2.2 to 2B.2 on 2013-06-12
Add Date:	1984-01-01
Date Edited:	2021-07-14

Ecology and Life History

Lifeform: perennial stem

Blooming Period: May-Jun

Elevation:
50 - 1500 meters
165 - 4920 feet

General Habitats:

Sonoran desert scrub (rocky)

Microhabitat Details:

Microhabitat:

Notes

Notes: Need precise locality information for quad 75 in RIV Co. Possibly threatened by vehicles and recreational shooting. State flower of AZ, where state-listed as Highly Safeguarded. See Journal of the New York Botanical Garden 9:188 (1908) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	8
	Total EOs	% of EOs
EOs with Threat Listed:	9	30 %
Road/trail construction/maint.	4	13%
Recreational use (non-ORV)	3	10%
ORV activity	2	6%
Altered flood/tidal/hydrologic regime	2	6%
Erosion/runoff	2	6%
Non-native animal impacts	1	3%
Development	1	3%
Vandalism/dumping/litter	1	3%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					30
A	B	C	D	X	U
4	9	1	1	0	15

Occurrence Status:
Historical >20 Years	11
Recent <=20 Years	19

Presence:
Presumed Extant	30
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

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

California Counties and Islands: Name (Code)
Imperial (IMP), San Bernardino (SBD)

Quads: Name (Quad Code)
Buzzards Peak (3311427), Gene Wash (3411432), Laguna Dam (3211474), Mt. Barrow (3311428), Palo Verde Peak (3311437), Picacho NW (3311426), Thumb Peak (3311447), Whipple Mts. SW (3411434), Whipple Wash (3411433)

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