Participant Info

Species

Eriogonum cernuum

Family

Polygonaceae

CommonName

nodding buckwheat

Presence

YES

Status

native

EarliestDate

1890

LatestDate

2020

Ecosystem

basin, shrubland, foothill, montane, ruderal

Geobotanical

SSawatch, Garitas, SSanjuans, NCristos, UBasin, LBasin

Counties

Alamosa, Conejos, Costilla, Hinsdale, Mineral, Rio Grande, Saguache

Passes

Poncha

WildlifePreserves

Baca, Blanca Wetlands, Great Sand Dunes, San Luis Lakes

Other Localities

PhotoRecords

YES Rich Haswell: Rio Grande Co, by CR 15A north of Del Norte 21 Aug 2020

Comments

Around the Watershed, nodding buckwheat is common. Its habitats are alkaline flats, volcanic outcrops, steep canyon inclines, occasionally the margin of trails and roads. The plant follows the Rio Grande down into New Mexico almost to the Mexican border, but no farther into Texas. In the USA it grows in all Western states, but not in the Sierras or Cascades or Pacific coast. Incidentally, the voucher determined as "Eriogonum wetherillii" by H. Dixon from 1 mile W of San Luis Lake (1990, Alamosa Co) is probably Eriogonum cernuum.

Annotation