Taxon Report

Heuchera parishii Rydb.

Parish's alumroot

Print Report

Taxon Summary

Heuchera parishii, commonly known as Parish's alumroot, is a perennial rhizomatous herb in the Saxifragaceae that is found only in California. It occurs within Alpine boulder and rock field, Lower montane coniferous forest, Subalpine coniferous forest, and Upper montane coniferous forest, growing at elevations from 1500 to 3800 meters. Heuchera parishii is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification


Scientific Name:	Heuchera parishii Rydb.
Common Name:	Parish's alumroot
Family:	Saxifragaceae
Element Code:	PDSAX0E1F0
USDA Plants Symbol:	HEPA9
Synonyms/Other Names:	Heuchera alpestris Rosend., Butt. & Lak.

Ecology and Life History


Lifeform:	perennial rhizomatous herb
Blooming Period: Jun-Aug	Jun-Aug
Elevation:	1500-3800 (4920-12470)
General Habitats:	Alpine boulder and rock field, Lower montane coniferous forest, Subalpine coniferous forest, Upper montane coniferous forest
Microhabitat:	Carbonate (sometimes), Rocky
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	1B.3
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG; USFS_S
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	70
Element Occurrence Ranks:
Excellent (A)	4
Good (B)	13
Fair (C)	2
Poor (D)	1
None (X)	0
Unknown (U)	50

Location


California Endemic: True
California Counties and Islands: Name (Code)
Riverside (RIV), San Bernardino (SBD)
Quads: Name (Quad Code)
Big Bear Lake (3411628), Butler Peak (3411731), Cajon (3411734), Catclaw Flat (3411616), Fawnskin (3411638), Forest Falls (3411618), Harrison Mtn. (3411722), Keller Peak (3411721), Lake Arrowhead (3411732), Moonridge (3411627), Onyx Peak (3411626), San Gorgonio Mtn. (3411617)

Threat List Data from the CNDDB


Threat List Total:	5
EOs with Threat Listed:	Total EOs	% of EOs
	8	11 %
Road/trail construction/maint.	4	5%
Foot traffic/trampling	2	2%
Mining	2	2%
Recreational use (non-ORV)	1	1%
Improper burning regime	1	1%

Notes



Includes H. alpestris. Possibly threatened by recreational activities and mining.
Threats:
Possibly threatened by recreational activities and mining.
Taxonomy:
Includes H. alpestris.

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 21 February 2025].