Participant Info

Species

Carex haydeniana [Carex festiva var. haydeniana] [Carex nubicola] etc.

Family

Cyperaceae

CommonName

cloud sedge, Hayden's sedge

Presence

yes

Status

native

EarliestDate

1911

LatestDate

2023

Ecosystem

montane, subalpine, tundra

Geobotanical

SSawatch, Garitas, SSanjuans

Counties

Conejos, Hinsdale, Mineral, Rio Grande, Saguache, Archuleta, San Juan

Passes

Carnero, Elwood, Grayback, La Manga, Poncha, Stony

WildlifePreserves

Brown Lakes

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTOS. Cloud sedge has been recorded fairly frequently from the western mountain ranges of the Watershed, but not yet from the eastern. Note that Allred et al. (2020) documents Carex haydieniana from the Sangre de Cristo range just south of the Colorado border, so the species may be expected in the Culebras of the Watershed. Typically C. haydeniana grows on rock tundra slopes, but a number of specimens, labelled "Carex haydeniana" and vouchered from the Watershed, were found in subalpine woods and even in lower vegetative zones (e.g. one mile south of Poncha Pass with Artemisia, Populus, Picea, and Pseudotsuga (Saguache Co, 1999). The USA distribution is diffuse locations in the Rockies and the Intermountain region of the West. The species follows the Rio Grande drainage only two counties into New Mexico, no farther down stream.

Annotation