[1] McAvoy, W. 2005. Personal communication with William McAvoy, Botanist, Delaware Natural Heritage Program, November 7, 2005.
[2] Pepper, M. 2004. 2004 Amaranthus pumilus (Seabeach amaranth) Survey Results. Unpublished report, Delaware Division of Fish and Wildlife, Natural Heritage and Endangered Species Program.
[3] Staples, J.C. 2005. Personal communication with John C. Staples, U.S. Fish and Wildlife Service, New Jersey Field Office, November 21, 2005.
[4] Strand, A. 2005. Seabeach Amaranth 2004 census and seed rain estimates. Unpublished report, College of Charleston, Charleston, S.C.
[5] Sturm, M. 2005. Personal communication with Mark Sturm, Assateague Island National Seashore, November 14, 2005.
[6] Suiter, D. 2005. Personal communication with Dale Suiter, U.S. Fish and Wildlife Service, Raleigh, NC, December 7, 2005.
[7] Young, S. 2005. Amaranthus pumilus Counts on Long Island 1990-2005. New York Natural Heritage Program Information.