HEDEOMA TODSENII
Irving, Dr. Robert S. 1985. Todsen's Pennyroyal (Hedeoma todsenii R.S. Irving) Recovery Plan. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. March 1985. 30 pp.
Taylor, R. V. 2001. Endangered species management plan for Todsen's pennyroyal at White Sands Missile Range, New Mexico. White Sands Missle Range, Division of Environmental Stewardship.. 63 p.
Taylor, R. V. 2003. A botanical rarity on the range. Submitted to White Sands Missile Ranger Newspaper. .
Sivinski, R. 1996. Section 6, segment 10 annual report of botanical work accomplished by NM Forestry and Natural Resources Dept. for Fish and Wildlife Service, Albuquerque, NM.
Gaines, K. H., and S. Boczkiewicz. 1995. Specimen tag information from the University of New Mexico Herbarium collection, Albuquerque.
Boczkiewicz, S. 1995. Specimen tag information from the New Mexico State University herbarium, Las Cruces. 14 December 1995.
BLM 1994. Todsen's Pennyroyal 1994 Progress Report. 73p.
Sivinski, R. 2007. Endangered Plant Study. Sante Fe, NM: New Mexico Forestry Division; Performance and Progress Report E-9-21. 120p.
Sivinski, R. 1991. Annual Section 6 performance report monitoring endangered plants (job 1). Unpublished report for U.S. Fish and Wildlife Service, Albuquerque, NM. 135 p + maps.
Lee-Chadde, S. and L.F. Huenneke. 1997. A handbook of rare, threatened and endangered plant species of the Sacramento Mountains. Dept. of Biology, New Mexico State University, Las Cruces, NM 88003. Draft. pp. 109.