This piece of beech was once part of a piece of Ikea furniture. A lot of Ikea furniture is made of beech.
Birch
Maple
This came from an ugly grey-ish sample of maple.
Poplar
Technically, poplar is a hardwood, even though it is very soft. Examining the grain very closely
does reveal that it's more like the hardwoods in how it's grown. I couldn't get a very clean slice off of
it because it's too soft.