Distribution: This species is sporadic and rare in southwestern NM.
Plants Seen or Cited: New Mexico: Animas Mts., Wagner 588; Peloncillo Mts.,
Peterson 77-11; Little Hatchet Mts., Worthington.
Discussion: Several years ago Laird McIntosh told me
he found this species along an irrigation ditch in Las Cruces. Miriam Fritts
says the FNA treatment will place C. ultra into synonymy with C.
spissa, which ranges into northern Mexico and is common in
southern Arizona. She says C. spissa is not a rare species.
Important Information Sources:
Cronquist et al. 1977. Intermountain Flora, Vol. 6
- Monocots. Columbia Univ. Press.
Fritts, Miriam (Pers. Comm. 1998). Carex expert on Colorado and Arizona species.
Lives in Tucson (520) 887-7291.
Great Plains Flora Association. 1986. Flora of the Great Plains.
Univ. Press of Kansas, Lawrence.
Hermann, F.J. 1970. Carices of the Rocky Mountains and Colorado
Basin. USFS Ag. Handbook No. 374.
Information Compiled By: Robert Sivinski, 1998