Velvety ground cover
I believe the answer is:
moss
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">velvety ground cover</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 moss that I've seen before include "Small flowerless plant(s)" , "Spore-bearing plant; bog" , "Parasitic plant" , "Plant(s) not wanted on lawns" , "Shape of pointed arch" .)