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Notes on Florida's Endangered and Threatened Plants by Nancy C. Coile,  2000
Endangered Plants and Threatened Ecosystems on the Island of Hawaii by James Juvik, John Delay, et all  2008-10-01
A Forester's Field Guide to the Endangered and Threatened Plants of Michigan's Upper Peninsula by Steve Chadde,  1999
Endangered and Threatened Plants of the United States by Smithsonian Institution,  1978
New Jersey's Endangered and Threatened Plants and Animals 
Extinction is Forever.The Status of Threatened and Endangered Plants in the Americas and Their Significance in Ecosystems Today and in the Future. by Ghillean; Elias, Thomas S. (editors) Prance,  1978
Candidate Threatened and Endangered Plants of Alaska, with Comments on Other Rare Plants by David F. Murray, Robert Lipkin,  1987
Endangered and Threatened Plants of Idaho: A Summary of Current Knowledge by D.M. Henderson and others,  1977
Threatened and endangered plants of Nevada: An illustrated manual by Hugh Nelson Mozingo,  1980
Rare Threatened & Endangered Plants & Animals of Oregon by Oregon Natural Heritage data base,  1985-01-26
Endangered and Threatened Plants of the United States. 
NOTES ON FLORIDA'S ENDANGERED AND THREATENED PLANTS. DEPART OF AGRICULTURE & CONSUMER SERVICES SPIRAL. NO. 38 2ND EDITION 1998 (BUREAU OF ENTOMOLOGY, NEMATOLOGY AND PLANT PATHOLOGY-BOTONY SECTION) by Nncy C. Coile,  1998
ENDANGERED AND THREATENED PLANTS AND ANIMALS OF VIRGINIA. by D. (ed.) Linzey,  1979
SENSITIVE, THREATENED AND ENDANGERED VASCULAR PLANTS OF MONTANA by Peter; Shelly, J. Stephen Lesica,  1991-01-01 |