Taxon Report

Eriogonum pendulum Wats.

Waldo wild buckwheat

Print Report

Taxon Summary

Eriogonum pendulum, commonly known as Waldo wild buckwheat, is a perennial herb in the Polygonaceae that is found in California and elsewhere. It occurs within Lower montane coniferous forest, and Upper montane coniferous forest, growing at elevations from 230 to 1000 meters. Eriogonum pendulum is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.

Classification


Scientific Name:	Eriogonum pendulum Wats.
Common Name:	Waldo wild buckwheat
Family:	Polygonaceae
Element Code:	PDPGN084Q0
USDA Plants Symbol:	ERPE6
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Aug-Sep	Aug-Sep
Elevation:	230-1000 (755-3280)
General Habitats:	Lower montane coniferous forest, Upper montane coniferous forest
Microhabitat:	Serpentine
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.2
Global Rank:	G4
State Rank:	S2S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.2 to 2B.2 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	28
Element Occurrence Ranks:
Excellent (A)	10
Good (B)	2
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	16

Location


California Endemic: False
California Counties and Islands: Name (Code)
Del Norte (DNT)
Quads: Name (Quad Code)
Gasquet (4112378), High Divide (4112481), High Plateau Mtn. (4112388), Shelly Creek Ridge (4112387)

Threat List Data from the CNDDB


Threat List Total:	4
EOs with Threat Listed:	Total EOs	% of EOs
	15	54 %
Mining	11	39%
Road/trail construction/maint.	3	10%
Improper burning regime	2	7%
Erosion/runoff	1	3%

Notes



Threatened by mining. On watch list in OR. See Phytologia 66(4):314 (1989) for taxonomic treatment.
Threats:

Taxonomy:

Selected References

USFS Potential Species of Conservation Concern Profile

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].