Flora Nordica is a research project with the aim to produce a scientifically based flora of the vascular plants in northern Europe. This flora should be a synthesis of previous research, indicating problems which should be considered in future research; it will comprise 15 volumes (4 published so far) and is written in English.
Flora Nordica treats all vascular plants (native or alien) wild-growing in Norden (map), i.e. Denmark, the Faroe Islands, Finland, Iceland, Norway (incl. Svalbard and Jan Mayen) and Sweden.

Botanists from all Nordic countries participate, both professionals and amateurs; among the many authors and reviewers are also several specialists from abroad.
Many institutions have made resources available for Flora Nordica. The major financial supporters have been The Bergius Foundation at the Swedish Royal Academy of Science (1987–2003) and Formas, the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (2004–2007).

Since 2008, Flora Nordica has no funding. While highly praised by botanists, the books are no blockbusters; the sales revenue alone can not support the minimum of staff needed for central functions.
Although several authors have delivered accounts for later volumes (e.g., for Cruciferae, Orchidaceae, Potamogeton), the continuation of Flora Nordica beyond volume 6 is therefore somewhat uncertain.