Heath genus (5)
I believe the answer is:
erica
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">heath genus</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for erica that I've seen before include "Woman" , "Plant genus of garden heather" , "I care (anag) - plant - girl" , "ling" , "Heather's Latin name?" .)