Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Arizona cacti. Engelmann's hedgehog cactus (Echinocereus engelmannii)

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Cacti in the Arizona desert. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus), USA

Hydrobiolog
Nichol's hedgehog cactus, golden hedgehog cactus (Echinocereus nicholii), Arizona, USA

Hydrobiolog
Nichol's hedgehog cactus, golden hedgehog cactus (Echinocereus nicholii), Arizona, USA

Hydrobiolog
Nichol's hedgehog cactus, golden hedgehog cactus (Echinocereus nicholii), Arizona, USA

Hydrobiolog
Nichol's hedgehog cactus, golden hedgehog cactus (Echinocereus nicholii), Arizona, USA

Hydrobiolog
Cacti of West and Southwest USA. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus). Arizona

Hydrobiolog
Cacti of West and Southwest USA. Arizona claret-cup cactus, Arizona hedgehog cactus (Echinocereus arizonicus). Arizona

Hydrobiolog
Flowering plants (Echinocereus sp.)

Hydrobiolog
Flowering plants (Echinocereus sp.)

Hydrobiolog
Flowering plants (Echinocereus sp.)

Hydrobiolog
Flowering plants (Echinocereus sp.)

Hydrobiolog
Flowering plants (Echinocereus sp.)

Hydrobiolog
Flowering plants (Echinocereus sp.)