Packera spellenbergii (Spellenberg's groundsel)
|USFWS||State of NM||USFS||BLM||Navajo Nation||State Rank||Global Rank||R-E-D Code||NMRPTC Status||Strategy Status|
Senecio cliffordii from northwestern New Mexico and south-central Utah is included as a synonym of this species in Flora of North America, Vol. 20 (2006), which would greatly extend the range of Spellenberg's groundsel. Deb Trock, who authored the Packera treatment in Flora of North America recently visited populations of Senecio cliffordii in New Mexico and now doubts her placement of it as a synonym of Packera spellenbergii (Bob Sivinski pers. comm. 2007). The NMRPTC decided at its meeting on March 30, 2007, to maintain Packera spellenbergii and Senecio cliffordii as distinct species.
*Barkley, T.M. 1989. New taxa and nomenclatural combinations in Senecio in Mexico and the United States. Phytologia 67(3):237-253.
*Ivey, R.D. 1995. Flowering plants of New Mexico, 3rd edition. Published by the author, Albuquerque, New Mexico.
Jeffrey, C. 1992. The tribe Senecioneae (Compositae) in the Mascarene Islands with an annotated world check-list of the genera of the tribe: Notes on Compositae VI. Kew Bulletin 47(1):49-109.
Flora of North America Editorial Committee. 2006. Flora of North America, volume 20. Oxford University Press, New York.