Taxon Report

Mammillaria grahamii Engelm. var. grahamii

Graham fishhook cactus

Print Report

Classification


Scientific Name:	Mammillaria grahamii Engelm. var. grahamii
Common Name:	Graham fishhook cactus
Family:	Cactaceae
Element Code:	PDCAC0A021
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial stem
Blooming Period: Apr-Sep	Apr-Sep
Elevation:	300-900 (985-2955)
General Habitats:	Sonoran desert scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.2
Global Rank:	G4T4
State Rank:	S2
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; SB_USDA
CRPR Changes:	changed from 2.2 to 2B.2 on 2013-06-12 added to 2.2 on 2010-04-06

Occurrence Data from the CNDDB


Total Occurrences:	10
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	1
Poor (D)	0
None (X)	0
Unknown (U)	9

Location


California Endemic: False
California Counties and Islands: Name (Code)
San Bernardino (SBD)
Quads: Name (Quad Code)
Gene Wash (3411432), Savahia Peak (3411435), Whipple Mts. SW (3411434), Whipple Wash (3411433)

Threat List Data from the CNDDB


Threat List Total:	1
EOs with Threat Listed:	Total EOs	% of EOs
	1	10 %
Road/trail construction/maint.	1	10%

Notes



Potentially threatened by road maintenance.
Threats:

Taxonomy:

Selected References

CRPR List Addition on 2010-04-06

Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].