Suggested Web-links

Discover Life - All Indiana species listed, approximately half with photographs. Type scientific name into the Search box:
http://www.discoverlife.org

Eastern Region USDA Forest Service:
http://www.fs.fed.us/r9/

Friesner Herbarium, Butler University - Information on the collection and the flora of Marion County, photos of spring wildflowers and plants from the Butler University Prairie:
https://herbarium.butler.edu/

Guide to Wildflowers of Twin Swamps Nature Preserve, Posey County, Indiana - Excellent photos and information:
http://www.usi.edu/science/biology/TwinSwamps/Wildflowers_of_Twin_Swamps.htm 

Hayes Arboretum - photos and info from the arboretum in Richmond, IN:
http://www.hayesarboretum.org/

Indiana Academy of Science - publications, biodiversity and state taxonomic experts information:
http://www.indianaacademyofscience.org/

Indiana Native Plant and Wildflower Society:
http://www.inpaws.org/

Indiana Natural Heritage Data Center, Division of Nature Preserves, Indiana Department of Natural Resources:
https://www.in.gov/dnr/naturepreserve/4746.htm

The Nature Conservancy, Indiana Chapter:
https://www.nature.org/en-us/about-us/where-we-work/united-states/indiana/

vPlants - a virtual herbarium of the Chicago Region, including plants of Northern Indiana:
http://www.vplants.org/

General References

Deam, C.C.  1940.  Flora of Indiana.  Indianapolis, IN: Department of Conservation, Division of Forestry.

Swink, F. and G. Wilhelm.  1994.  Plants of the Chicago Region, 4th ed.  Indianapolis, IN: Indiana Academy of Science. 

Regional Floras

Gleason, H. A. and A. Cronquist.  1991.  Manual of vascular plants of northeastern United States and adjacent Canada 2nd ed.  New York, NY: New York Botanical Garden.

Picture Guides and Specialty Books

Antonio, T.M.and S. Masi. 2001. The Sunflower Family in the Upper Midwest. Indianapolis, IN: Indiana Academy of Science.

Homoya, M.A.  1993.  Orchids of Indiana.  Indianapolis, IN: Indiana Academy of Science.

Jackson, M.T. 2004. 101 Trees of Indiana—a Field Guide. Bloomington, IN: Indiana University Press.

Wampler, M. and F. Wampler.  1988.  Wildflowers of Indiana.  Bloomington, IN: Indiana University Press.

Yatskievych, K.  2000.  Field guide to Indiana wildflowers.  Bloomington, IN: Indiana University Press.