Pungent Desert Parsley, Lomatium grayi, and early red oak leaf growth, Columbia River Gorge National Scenic Area, Washington

Agave, Close up of thorns on plant before opening.

Kalanchoe, Red tipped leaves of Kalanchoe thyrsiflora grassulaceae showing pattern detail.

Mojave Aster in Red Rock Canyon State Park, California, USA.

Yucca, Yucca filamentosa, Close up of white flowers growing outdoor.

Yucca, Yucca filamentosa, Close up of white flowers growing outdoor.

Cactus, Close up shot of multi coloured cactii.

Agave, Royal agave, Agave victoriae-reginae, Detail of green leaves showing pattern.

Cactus, Torch Cactus, Echinopsis spachiana, Close up detail showing the spiky pattern.-

Cactus, Torch Cactus, Echinopsis spachiana, Close up detail showing the spiky pattern.-

Prickly Pear Cactus, Opuntia cochenillifera, Close up of purple coloured fruit-

Cactus, Golden Barrel Cactus, Echinocactus grusonii, Mass of small spiky cacti.-