1996
Sivinski, R. 1996. Field forms for survey for Hedeoma todsenii and Aquilegia chrysantha var. chaplinei in Lincoln National Forest, with introductory letter.
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HEDEOMA TODSENII
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.
Oliva, Jon Paul. 1999. A preliminary habitat analysis using GIS and geospatial imagery: potential distribution of Hedeoma todsenii, a rare endangered plant. . 2 p.
Sivinski, R. 1994. Todsen's pennyroyal (Hedeoma todsenii), 1994 progress report (Section 6 Segment 9).