fiddlehead       
noun [ C ] uk/ˈfɪd.əl.hed/ us/ˈfɪd.əl.hed/
 蕨菜
the curly end of some young ferns (= green plants with long stems, leaves like feathers, and no flowers), sometimes cooked and eaten as a vegetable
  Fiddleheads are good fried in butter with a little garlic. 蕨菜适合用黄油和少许大蒜煎炸。 
 I ordered a fiddlehead salad with noodles. 我点了一份蕨菜沙拉面条。 
 - More examples
 - The fiddleheads of certain ferns are eaten as a cooked leaf vegetable.
 - Make sure you wash your fiddleheads thoroughly before cooking.
 - First of all, she boiled the fiddleheads quickly in salted water and then drained them.
 - He added the fiddleheads to the hot pan and cooked them on a high heat.
 - The season is short, as fiddlehead ferns are only available for about two weeks.