They say a picture is worth a thousand words:
Lightard Stump. The tree was probably cut fifty years ago.
Lightard fence post. No telling how long it has been in the ground. I would guess minimum sixty-plus years. It is still solid.
These are fair examples of lightard knots. I picked them up in the woods today. They occur where a limb branches from the trunk or from a larger branch. For some reason, resin is more concentrated there. when the sapwood rots, often all that is left is a "lightard knot".
Old buildings such as the one these doors are on are built mostly of fat lightard. This barn is probably 125 years old or older. If you have ever seen one of these structures burn, you know what a black smoke they put up and how quickly they are consumed.
This is a "heart pine" floor. Same as lightard. Before planing, sanding, and several coats of clear polyurethane (no stain, just clear), these boards looked very much like the boards in the old doors in the previous picture. The darker board where the floor transitions to tile is particularly interesting because you can see the old saw-kerf marks. These boards came off an old chicken coop and barn on the place. The darker boards have more heart, the lighter ones more sapwood.
Heart Pine table built for us by "Buzzy" Smith from Americus. The table is set for Thanksgiving Dinner.
All these pictures were made on my wife's farm here in North Taylor County. As you can see, we love our "fat lightard" floors and furniture.