Microwave treatment compares favorably with conventional autoclave treatment for preparing leaf samples of Purshia tridentata, Atriplex canescerts, and Artemisia tridentata for analyses of total nonstructural carbohydrates (TNC) and for analyses of total organic N (TN). Contrary to previous literature, air-drying was also an acceptable procedure for preparing P. tridentata leaves for TNC analyses. For measurements of TN, microwave, autoclave, and airdrying treatment of leaf tissue gave the same results. Results of the air-drying treatment have important implications for sampling shrub species in remote field research locations where autoclave and microwave facilities are not available. Forest Sci. 30:113-116.