Parent Category Figures
1 Silphium laciniatum 524
2 Silphium perfoliatum 470
3 Silphium terebinthinaceum 334
4 Silphium integrifolium 214
5 Silphium albiflorum 193
6 Silphium gracile 106
7 Silphium radula 91
8 Silphium asteriscus 79
9 Silphium compositum 48
10 Silphium pinnatifidum 8
11 Silphium simpsonii 6
12 Silphium ginniferum 5
13 Silphium glutinosum 2