Taxon Details

Eriogonum pendulum

Waldo wild buckwheat

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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:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G4
State Rank:	S2S3
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Aug-Sep

Elevation:
230 - 1000 meters
755 - 3280 feet

General Habitats:

Lower montane coniferous forest
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Serpentine

Notes

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

Threat List Data from the CNDDB

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

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					28
A	B	C	D	X	U
10	2	0	0	0	16

Occurrence Status:
Historical >20 Years	22
Recent <=20 Years	6

Presence:
Presumed Extant	28
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

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)

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

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CNPS Rare Plant Inventory