Karst is a type of landscape where the dissolving of the bedrock has created sinkholes, sinking streams, caves, springs, and other characteristic features.
Click images to enlarge. The honey locust tree, or honeylocust, is a fast grower and is considered invasive by some. Flowers are not especially showy. The honeylocust tree is so named because of the taste of the inner flesh of its pods, which appear in fall and unlike the black locust tree, is not toxic.
Robinia pseudoacacia. Black Locust is a medium-sized tree, growing up to 80 feet tall. It is easily recognized by its leaves and paired spines up to1/2 inch long. Black Locusts prefer sandy or rocky soil, and are most often found in old fields, open areas, woods, and streamsides.