| TITLE (opens new window) | DESCRIPTION |
| Atlas of the Wisconsin Prairie and Savanna Flora |
by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times |
| USDA Plants Database |
Federal Distribution and detailed information including photos |
| USDA Agricultural Research Service (ARS) |
Images of seeds, fruits, embryos, etc. |
| USDA Agricultural Research Service (ARS) |
Images of seeds, fruits, embryos, etc. |
| USDA Agricultural Research Service (ARS) |
Images of seeds, fruits, embryos, etc. |
| USDA Agricultural Research Service (ARS) |
Images of seeds, fruits, embryos, etc. |
| Dan Tenaglia's The Missouri Flora |
Fabulous photographs; detailed descriptions; color and leave arrangement key. |
| Purple Sage - Ethnobotanical Information |
Detailed usage, preparation, and other helpful information |
| Southwest School of Botanical Medicine |
Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada" |