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 Plants24,0778,6608,7192,69636,565
Flowering Plants*20,0578,2145,4522,38228,814
Conifers and relatives*145494715199
Ferns and relatives*71113321946859
Mosses1,0541101,0421381,642
Liverworts44711933547762
Hornworts1216020
Fungi (non-lichenized)118470134
Lichens1,533301,611684,135
"*" Denotes groups for which native species are comprehensively covered in NatureServe Explorer.
Note: These records include 4,164 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 Plants1495,38910,28176314
Conifers and relatives0229200
Ferns and relatives3176385219
Mosses52189065396
Liverworts1163315520
Hornworts07501
Fungi (non-lichenized)2942300
Lichens42669898829
Total1646,33512,9961441,279
* 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 Plants522,7283,409621,719
Conifers and relatives0202732
Ferns and relatives03761134
Mosses015450109
Liverworts2526653
Hornworts01000
Fungi (non-lichenized)04000
Lichens0627046
Total542,8633,635711,913
* 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.