HEDEOMA TODSENII
Sivinski, R. 2009. TODSEN'S PENNYROYAL (Hedeoma todsenii) Progress Report to U.S. Fish & Wildlife Service, Region 2, Section 6, Segment 23. 30 October 2009.
Morrow, P. 2023. Todsen’s Pennyroyal monitoring was conducted at all 15 populations in the San Andres Mountains on White Sands Missile Range. No plants were collected, and no new populations were discovered.
Sivinski, R. 1996. Field forms for survey for Hedeoma todsenii and Aquilegia chrysantha var. chaplinei in Lincoln National Forest, with introductory letter.
Ulaszek, E. F. 1994. Todsen's pennyroyal (Hedeoma todsenii -R.S. Irving) recovery plan, revision 1. Draft report prepared for R-2 USFWS, Albuquerque, NM. 26 pp.
Poague, L. 1994. Gedeoma todsenni Draft Recovery Plan Review. USFS
Taylor, J. 2001. Email letter to Teri Neville from Rob Taylor (WSMR) regarding Hedeoma todsenii locations and potential habitat modeling. . 3 p.
White Sands Missile Range and New Mexico Natural Heritage Program. 2001. White Sands Missile Range Integrated Natural Resources Management Plan (INRMP). . 469 p.
Irving, R.S. "Hedeoma todesenii^& (Labiatae), A New and Rare Species from New Mexico." Madrono. Vol.26 #4. 1Dec.7 1979.
Advanced Sciences, Inc. 1994. Database of rare and sensitive species information developed for the White Sands Missile Range from various sources.
Todsen, Thomas K. 1990. T and E survey of the Oscura Mountains. 4 August 1990.