TY - BOOK ID - 145463725 TI - Ecological investigations of the federally endangered Shivwits Milk-Vetch (Astragalus ampullarioides)--2006 annual report AU - Miller, Mark Eugene AU - United States. AU - Southwest Biological Science Center (U.S.) AU - Geological Survey (U.S.) PY - 2007 PB - Reston, Va. : U.S. Geological Survey, DB - UniCat KW - Endangered plants KW - Astragalus (Plants) KW - Environmental aspects KW - Zion National Park (Utah) UR - https://www.unicat.be/uniCat?func=search&query=sysid:145463725 AB - ER -