Covered with pollen particles...

a bee emerges from a prickly pear cactus blossom in the rock garden. On to the next flower, a pollinator’s work is never done.

Prickly pear cactus (genus Opuntia).

NOTE: This image was shot with a handheld 400 mm telephoto lens from a standing position. Nearly as good as a tripod-mounted macro lens close to the subject.