Answer:
The land was white the seed was black. It'll take a good scholar to riddle me that.
Lovely and round, I shine with pale light, Grown in the darkness, a ladyβs delight.
What is seen in the middle of march and april?
What is found over your head but under your hat?
One more than a duet.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.