| Rudbeckia subtomentosa Sweet coneflower View 5 images |  |
| Sanguinaria canadensis Bloodroot View 40 images |  |
| Salix discolor Pussy willow View 6 images |  |
| Schizachyrium scoparium Little bluestem View 37 images |  |
| Sisyrinchium campestre Prairie blue-eyed grass View 3 images |  |
| Silphium integrifolium Wholeleaf rosinweed View 18 images |  |
| Silphium laciniatum Compassplant View 14 images |  |
| Silphium perfoliatum Cup plant View 21 images |  |
| Silphium terebinthinaceum Prairie rosinweed View 9 images |  |
| Solidago nemoralis Gray goldenrod View 9 images |  |
