This is the website for the Native and Naturalized Vascular Plants of Connecticut Checklist. This site contains files for downloads and links to relevant web resources including the online database of the checklist. It is a work in progress.

The checklist project is sponsored by the Connecticut Botanical Society which published a new printed version of the Connecticut Checklist in January 2014. Copies of the printed version are available from the Connecticut College Arboretum, Campus Box 5201, 270 Mohegan Avenue, New London, CT 06320. arbor@conncoll.edu  860-439-5020 


By Dr. Chad Jones, Connecticut College, May 2014

Of the 2827 taxa in Dowhan’s 1979 Preliminary Checklist of the Vascular Flora of Connecticut:

325 disappeared by being merged     

25 new taxa appeared by splitting     

65 taxa have no evidence of being in Connecticut    

351 new taxa have been added to the list     

Of the 2853 taxa in Dreyer, Jones, et al. 2014 Native and Naturalized Vascular Plants of Connecticut Checklist:  

28.6% changed family, genus, or species since Dowhan's list (beyond just spelling changes)

12.8% changed family                       

18.5% changed genus or species        

12.3% are new                       


Origin of the taxa:                  

Graves 1910                Dowhan 1979             Dreyer, Jones et al. 2014        

# taxa              2228                            2802*                          2853

# exotic             492                              938                            1082

% exotic          22.10%                        33.50%                        37.90%           

            *Not including the 65 that are not currently believed to be in CT


Of the 351 new taxa:               

149  are native (including many hybrids)      

202  are exotic (including invasives)  

20  are on the invasive species list      

Contact glenn.dreyer (at) conncoll.edu with corrections or questions.