Most cactus blossoms are lovely but these claret-cups (Echinocereus triglochidiatus, also called Mojave mound cactus) were particularly striking. They were growing in Joshua Tree National Park in southern California.
Canon 1D4; Sigma 150 mm macro lens, Canon 24-105 mm, or Tokina 11-16 mm zoom, fill-in flash on some; diffuser on others (2013)