Taxon Report

Eriogonum nudum Benth. var. decurrens (S. Stokes) Bowerman

Ben Lomond buckwheat

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Species Description:
Eriogonum nudum var. decurrens, commonly known as Ben Lomond buckwheat, is a perennial herb in the Polygonaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Lower montane coniferous forest (maritime ponderosa pine sandhills), growing at elevations from 50 to 800 meters. Eriogonum nudum var. decurrens is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

  Classification

Scientific Name:
Eriogonum nudum Benth. var. decurrens (S. Stokes) Bowerman
Common Name:
Ben Lomond buckwheat
Family: Polygonaceae
Element Code: PDPGN08492
USDA Plants Symbol: ERNUD
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: Jun-Oct Jun-Oct
Elevation: 50-800 (165-2625)
General Habitats: Chaparral, Cismontane woodland, Lower montane coniferous forest
Microhabitat: Sandy
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 9
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 2
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 7
California Endemic:  True
California Counties and Islands: Name (Code)
Santa Cruz (SCR)
Quads: Name (Quad Code)
Davenport (3712212), Felton (3712211), Laurel (3712118)

Threat List Data from the CNDDB

Threat List Total: 6
EOs with Threat Listed: Total EOs % of EOs
4 44 %
Development 1 11%
Foot traffic/trampling 1 11%
Logging 1 11%
Mining 1 11%
Recreational use (non-ORV) 1 11%
Road/trail construction/maint. 1 11%

Notes

Threatened by development and sand mining. See Phytologia 66(4):329-333 (1989) for taxonomic treatment.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 15 January 2025].