I took some pictures of Silphium terebinthinaceum, also called prairie dock or prairie rosinweed. This is a fairly tall prairie plant, so I had to stand on a step ladder to take the pictures. Balancing on a ladder while trying to take critically sharp pictures of bees on flowers that are six to nine feet in the air takes some practice. Using two flashes helps.
Photo info: Nikon D70, Micro Nikkor 105mm 1:2.8 D; manual exposure 1/320 to 1/500 second, f/6.3 to f/9, balanced speedlight and ambient, with at least half of the light from cross polarized flashes (SB-600, SB-25) on a flash bracket.