Like the trees that produce them, bristlecone needles are long-lived; they last up to 30 ... The tallest bristlecone pine is but 60 feet tall, and most of its kind are much shorter.

the Jack pine. This tree is differentiated from other Indiana conifers by its short two-needle clusters often found in a V formation, as well its closed cones, and open crown.

Jack LeCroy is the regional extension ... Pine needles break down slowly, so a layer of pine needles several inches thick will last a long time. If you live someplace with lots of pine trees ...