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.
How to Identify Locust Trees. Identify locust trees (Robinia spp.) by their pendant clusters of fragrant, sweet pea-shaped flowers, which are usually white or pink. And keep an eye out for sharp, straight or forked spines and by their feathery, pinnately compound leaves. Several species of locust trees grow wild in North America and are used for landscaping.