The following reports identify those native Maryland plants that are among the least understood, the rarest, and the most in need of conservation efforts. It includes species occurring in Maryland that are on the federal list of Endangered and Threatened Wildlife and Plants under the Endangered Species Act (ESA), species currently on the State’s Threatened and Endangered Species list, and additional species that are considered rare or under assessment by the Wildlife and Heritage Service.
Compiled by Wildlife and Heritage Service staff and conservation partners, this list of rare species is a result of more than 40 years of effort to gather, research, and analyze data from numerous sources, such as herbaria, scientific literature, unpublished documents, reports from botanists and amateur naturalists, and extensive field work conducted by scientists from the Department of Natural Resources (DNR).
While information is constantly updated, the regulatory process is more complex; as such, updates to the Rare, Threatened, and Endangered Species list are made periodically. The reports below contains conservation status rank and State legal status revisions since our last published list in 2019.
Rare, Threatened and Endangered Plants of Maryland
Expanded Rare, Threatened, and Endangered Plants of Maryland
RTE Lists by County