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The endangered Everglades crabgrass is seen in the Everglades National Park on March 16, 2015 in Miami, Florida. The Institute for Regional Conservation released a 10-year report authored by George D. Gann, chief conservation strategist for the group, that included information on 59 rare and endangered plants, many of which used to flourished in South Florida and now are barely clinging to existence in the Everglades and nearby protected areas. The report provides park managers recommendations on habitat management in the face of potential impacts of sea level rise, invasive exotic species and other threats to the health of the ecosystem.(Footage by Joe Raedle/Getty Images)