Taxon Details

Eriogonum contiguum

Reveal's buckwheat

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Taxon Summary:

Eriogonum contiguum, commonly known as Reveal's buckwheat, is a annual herb in the Polygonaceae that is found in California and elsewhere. It occurs within Mojavean desert scrub, growing at elevations from 30 to 1320 meters. Eriogonum contiguum is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Eriogonum contiguum (Rev.) Rev.
Common Name: Reveal's buckwheat
Family:	Polygonaceae
Element Code:	PDPGN081B0
USDA Plants Symbol:	ERCO20
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S2
Other Status:	BLM_S; SB_CalBG/RSABG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: annual herb

Blooming Period: (Feb)Mar-May(Jun)

Elevation:
30 - 1320 meters
100 - 4330 feet

General Habitats:

Mojavean desert scrub (sandy)

Microhabitat Details:

Microhabitat:

Notes

Notes: Possibly threatened by vehicles. See Phytologia 23:175 (1972) for original description and 66(4):359 (1989) for taxonomic treatment.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	7
	Total EOs	% of EOs
EOs with Threat Listed:	16	46 %
ORV activity	11	31%
Non-native plant impacts	3	8%
Foot traffic/trampling	2	5%
Grazing	1	2%
Channelization	1	2%
Erosion/runoff	1	2%
Road/trail construction/maint.	1	2%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					35
A	B	C	D	X	U
12	1	2	0	0	20

Occurrence Status:
Historical >20 Years	14
Recent <=20 Years	21

Presence:
Presumed Extant	35
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Nevada (NV)

California Counties and Islands: Name (Code)
Inyo (INY), San Bernardino (SBD)

Quads: Name (Quad Code)
Calvada Springs (3511588), Daylight Pass (3611678), Devils Golf Course (3611637), Eagle Mtn. (3611623), East of Chloride City (3611667), East of Ryan (3611635), Echo Canyon (3611646), Emigrant Pass (3611732), Furnace Creek (3611647), Grotto Canyon (3611751), Hanging Rock Canyon (3711726), Indian Spring (3511527), Kingston Peak (3511568), Lower Warm Springs (3611777), Mound Spring (3611518), Mt. Manchester (3511416), Nevares Peak (3611657), Nopah Peak (3611611), Ryan (3611636), Sixmile Spring (3611621), Stovepipe Wells NE (3611761), Tecopa Pass (3511671), Twelvemile Spring (3611612), West of Eagle Mtn. (3611624)

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