North American Prairie Conference
Date of this Version
1989
Abstract
Blowout penstemon (Penstemon haydenii S. Wats.) was federally listed as an endangered species on 1 September 1987. This pap"!r describes the process by which species, emphasizing blowout penstemon, are listed. The five listing factors described in Section 4 of the Endangered Species Act, candidate species, and the listing process are discussed. The blowout penstemon listing process progressed as follows: 1) petition to list; 2) designation as Category 2 Candidate Species; 3) status survey; 4) designation as Category 1 Candidate Species; 5) proposed rule to list; and 6) the final listing rule. The primary reasons for listing were the stabilization of blowout complexes and the low probabilities of seed fertilization, maturation, dispersal, and seedling establishment.
Comments
Published in Prairie Pioneers: Ecology, History and Culture: Proceedings of the Eleventh North American Prairie Conference, August 7-11, 1988, Lincoln, Nebraska (Lincoln, NE 1989).