Evolution photos

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Petrified wood in Arizona

Clarkia flower

Grafted walnuts in California

Bridge over the San Andreas Fault

Spanish moss on oaks in California

Cakile maritima

Calycanthus occidentalis in California

High Sierra Trail

Kaweah Lake at Dusk

Linanthus montanus in Sequoia National Park

Linanthus montanus

Linanthus montanus in Sequoia National Park

A botanist and a giant sequoia

Cornus nuttallii

Mt. Whitney from High Sierra trail

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Grafted walnuts in California

In central, coastal California, English walnuts (Juglans regia) will not grow well unless grafted to native Juglans californica rootstock. 2012 photo by Stanley Rice.