JEFF LEPORE / SCIENCE PHOTO LIBRARY JEFF LEPORE / SCIENCE PHOTO LIBRARY
Desert barrel cactus flowers. Close-up of desert barrel cactus flowers (Ferocactus acanthodes), showing their stamens (male reproductive parts) and carpels (female reproductive parts, centre). The desert barrel cactus inhabits arid regions of Mexico and south-western USA. Its spines are modified leaf structures whose small surface area reduces water loss by evaporation. Photographed in Anza-Borrego Desert State Park, California, USA.
Model release not required. Property release not required.