California redwood (7)

I believe the answer is:
sequoia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">california redwood</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sequoia that I've seen before include "Californian conifer" , "Giant conifer" , "California redwood tree" , "Giant Calif. tree" , "Enormous evergreen" .)