Participant Info

Species

Carex praeceptorum [Carex canescens var. dubia] [Carex heleonastes var. dubia]

Family

Cyperaceae

CommonName

early sedge, teachers' sedge, teacher's sedge

Presence

yes

Status

native

EarliestDate

1945

LatestDate

2014

Ecosystem

montane, subalpine, tundra

Geobotanical

SSanjuans

Counties

Conejos, Hinsdale, Mineral, San Juan

Passes

Wolf Creek

WildlifePreserves

Other Localities

PhotoRecords

Comments

NEED IN SITU PHOTOS. Teachers' sedge has been vouchered four or fives times in the Watershed, all from the South San Juans. The habitat is alpine or subalpine mesic meadows or seepage sides. An exception is the collection made southeast of Terrace Reservoir (Conejos Co, 2004) in pinyon land among rock outcrops—a determination accepted by Ackerfield (2020). In the lower UsA, Carex praeceptorum follows the Rockies from the Canadian border to Rio Arriba Co, New Mexico, with isolated locations in all the other Western states except for Arizona. The species does not follow the Rio Grande drainage farther south than Rio Arriba Co. The common name "teachers' sedge" is a translation of the Latin "praeceptorum." Note that "praeceptorum" is genitive plural, not singular, so teachers' is the correct form.

Annotation