1. N. O. Anderson, P. D. Asher, and B. E. Liedl .1995 .Importance of introgressive hybridization in the development of invasiveLythrum salicaria., HortScience, 30 :819 .
2. G. R. Balogh, 1989 .Distribution and seedling ecology of purple loosestrife in Ohio's Lake Erie marshes., Ohio J. Sci, 86 :51 .
3. Desert Saltgrass Seed Germination and Seedbed Ecology
4. R. A. Evans, and J. A. Young .1970 .Plant litter and establishment of alien annual species in rangeland communities., Weed Sci, 18 :697 –703 .
5. R. A. Evans, and J. A. Young .1972 .Microsite requirements for establishment of alien annual species in rangeland communities., Weed Sci, 20 :350 –356 .