Overview of Plant Data
 
 
  
 
 
 
 
 

Overview of Plant Data

NatureServe Explorer provides comprehensive conservation status, taxonomic, and distribution information for all native and exotic species, subspecies, varieties and named hybrids of vascular plants of the United States and Canada, except those present only in cultivation. Distribution data are provided for all states and provinces where each species is known to occur. In addition, comprehensive conservation status and taxonomic information is also provided for all native and exotic species, subspecies, varieties and named hybrids of non-vascular plants and lichens of the United States and Canada (except those present only in cultivation), although distribution data for these taxa is incomplete at this time. Conservation status and taxonomic information is also provided for selected non-lichenized fungi, although the list of fungus species displayed is not comprehensive (i.e. many non-lichenized fungi known to occur in the United States or Canada are not included), and distribution data for these taxa is incomplete at this time. See Classification of Plants for sources of plant names used in NatureServe Explorer. All vascular plant, non-vascular plant, and lichen taxa recorded in NatureServe Explorer have been classified according to standard references, and most have been assigned a global conservation status rank. National status under the U.S. Endangered Species Act and the Committee on the Status of Endangered Wildlife in Canada are provided where applicable. This information is continually reviewed and updated in the NatureServe Central Databases in order to reflect the latest taxonomic treatments, ongoing inventory efforts, and new status assessments. NatureServe Explorer is updated periodically from the NatureServe Central Databases to reflect those changes.

Total Plant Records in NatureServe Explorer
  Known U.S.
Distribution
Known Canadian Distribution Total
Species and Subspecies
Species Subspecies Species Subspecies
All Plants8,1711,9708036,494
Flowering Plants*6,9561,8765028,747
Conifers and relatives*38320199
Ferns and relatives*2843400858
Mosses51422101,640
Liverworts1153000762
Hornworts410020
Fungi (non-lichenized)0000134
Lichens2604004,134
"*" Denotes groups for which native species are comprehensively covered in NatureServe Explorer.
Note: These records include 811 plants known to be exotic in the United States or Canada.


Plant Species by NatureServe Conservation Status
(Native* Only)
  Potentially Extinct
(GX, GH)
At Risk (G1, G2, G3)
Apparently Secure (G4, G5)
Unrankable (GU)
Not Yet Ranked (GNR)
Flowering Plants181,5194,616842
Conifers and relatives082600
Ferns and relatives03922600
Mosses17941798
Liverworts1397401
Hornworts03100
Fungi (non-lichenized)00000
Lichens061160138
Total201,7485,5201889
* Includes only described taxa that are native to and regularly occurring in the United States or Canada.

Plant Subspecies and Varieties
(Native* Only)
  Potentially Extinct
(TX, TH)
At Risk (T1, T2, T3)
Apparently Secure
(T4, T5)
Unrankable (TU)
Not Yet Ranked (TNR)
Flowering Plants55651,1069104
Conifers and relatives01200
Ferns and relatives042802
Mosses031009
Liverworts2161200
Hornworts01000
Fungi (non-lichenized)00000
Lichens01102
Total75911,1599117
* Includes only described taxa that are native to and regularly occurring in the United States or Canada.

 
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  NatureServe
 
Ecological Community data provided by NatureServe. Plant data provided by NatureServe. Invertebrate Data provided by NatureServe. Ecological Community data provided by NatureServe. Invertebrate data provided by NatureServe. Vertebrate data provided by NatureServe.