What wood sparks a lot while burning?

Wood that is damp tends to spark alot.

I have burned wood to heat my house for years, and am very familiar with wood types, and I have not found that answer to be correct. Certain types of wood just spark a lot, I don't know why. Hedge is the hottest burning wood I know of and is also the worst offender in the spark category. It seems that any yellow colored wood is a bad sparker, such as hedge (aka osage orange) and black locust and mulberry. They spark a lot, burn hot, and are yellow colored wood. The best overall wood is white oak, as it splits fairly easy, and burns really hot, but not too hot like hedge (it will melt your grates) has almost no sparks and lasts a long time.

For more details about many types of wood, click here: http://www.demesne.info/Garden-Help/Trees-Shrubs/Firewood-hard.htm