Spring bulb (5)

I believe the answer is:
tulip
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">spring bulb</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tulip that I've seen before include "Spring bulb" , "Liliaceous bulb" , "Flower of the Netherlands" , "Dutch bulb?" , "Amsterdam bloom?" .)