Simplify the following text for a Grade 4 native English-speaking person.
Original: The name ` buckwheat ' or ` beech wheat ' comes from its triangular seeds , which resemble the much larger seeds of the beech nut from the beech tree , and the fact that it is used like wheat .
Simplified: It is not related to wheat , because wheat is a true grass . Buckwheat seeds look like small beech tree seeds .