As of September 2016, the International Union for Conservation of Nature (IUCN) lists 1674 data deficient plant species. 7.6% of all evaluated plant species are listed as data deficient. The IUCN also lists 18 subspecies and 57 varieties as data deficient. No subpopulations of plants have been evaluated by the IUCN.
This is a complete list of data deficient plant species, subspecies and varieties evaluated by the IUCN.
There are 49 alga species evaluated as data deficient.
There are seven bryophyte species evaluated as data deficient.
There are 58 pteridophyte species evaluated as data deficient.
There are 50 species in the class Polypodiopsida evaluated as data deficient.
There are 42 species in the order Polypodiales evaluated as data deficient.
There are 20 species and 16 varieties of gymnosperm evaluated as data deficient.
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Varieties
There are 1087 species, 17 subspecies, and 36 varieties of dicotyledon evaluated as data deficient.
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Varieties
There are 33 species, one subspecies, and one variety in the order Sapindales evaluated as data deficient.
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Subspecies
There are 112 species, one subspecies, and one variety in the order Magnoliales evaluated as data deficient.
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Subspecies
There are 41 species in Capparales evaluated as data deficient.
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Varieties
There are 21 species in Primulales evaluated as data deficient.
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Subspecies
There are 52 species, eight subspecies, and nine varieties in the order Fagales evaluated as data deficient.
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