Participant Info

Species

Carex deweyana [Vignea deweyana]

Family

Cyperaceae

CommonName

Dewey's sedge

Presence

yes

Status

native

EarliestDate

1899

LatestDate

1899

Ecosystem

montane

Geobotanical

SSanjuans

Counties

Conejos

Passes

Cumbres

WildlifePreserves

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTOS. From the Watershed there has been only one voucher of Dewy's sedge, collected over a century ago: from Los Pinos, just east of Cumbres pass (Conejos Co, 1899). Nothing is known of the habitat of this specimen, but locations just west of the Continental Divide in the San Juan River drainage are also in the mixed conifer typical of that part of Conejos Co. Carex deweyana also has been recorded from Rio Arriba, Taos, and Santa Fe counties of New Mexico, so the Conejos Co location makes geographic sense. The species does not follow the Rio Grande drainage farther south. Its lower USA distribution follows the Rocky Mountains, in a scattered fashion, up to the Canadian border and across the Great Lakes region into New England.

Annotation