Taxon Report

Tetracoccus hallii Bdg.

Hall's tetracoccus

Print Report

Taxon Summary

Tetracoccus hallii, commonly known as Hall's tetracoccus, is a perennial deciduous shrub in the Picrodendraceae that is found in California and elsewhere. It occurs within Mojavean desert scrub, and Sonoran desert scrub, growing at elevations from 30 to 1200 meters. Tetracoccus hallii is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Tetracoccus hallii Bdg.
Common Name:	Hall's tetracoccus
Family:	Picrodendraceae
Element Code:	PDEUP1C021
USDA Plants Symbol:	TEHA
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial deciduous shrub
Blooming Period: Jan-May	Jan-May
Elevation:	30-1200 (100-3935)
General Habitats:	Mojavean desert scrub, Sonoran desert scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G4
State Rank:	S4
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: False
California Counties and Islands: Name (Code)
Riverside (RIV), San Bernardino (SBD)
Quads: Name (Quad Code)
Corn Spring (3311563), Cottonwood Spring (3311567), East of Red Canyon (3311555), Flattop Mtn. (3411477), Fried Liver Wash (3311588), Hayfield (3311566), Hayfield Spring (3311565), Horn Spring (3411427), Mohawk Spring (3411447), Parker NW (3411424), Pilot Mountain (3311553), Porcupine Wash (3311577), Queen Mtn. (3411611), Stepladder Mountains (3411457), Thermal Canyon (3311661), West of Mohawk Spring (3411448), Whipple Mts. SW (3411434), Yucca Valley South (3411614)

Threat List Data from the CNDDB


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

Notes



See Zoe 5(11):229 (1906) for original description, and Rhodora 56:57-60 (1954) for taxonomic treatment.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 7 February 2025].