The leaves of the Scarlet Locust tree are similar to Mimosa Tree leaves. Like other Locust trees, the Scarlet Locust develops long seedpods which can hang on the tree for several months after maturing. Birds use these Scarlet locust seeds for food late in the winter and spread them in droppings. The small Flowering Scarlet Locust Tree has drooping branches and produces fern-like leaflets that are sensitive to various environmental factors such as touch, light and rain and will close up with surprisingly little stimulation.The Flowering Scarlet Locust Tree's seeds are shaped like peanuts, another legume that produces soil enriching nitrogen. The blooms of the Flowering Scarlet Locust Tree are a spectacular scarlet color and droop about 1 ft. long like Wisteria flowers. The Scarlet Locust Tree blooms in beautiful shades of red which really shine among the dark green leaflets. The Flowering Scarlet Locust Plant is a 'Cassia-like' Perennial and has numerous leaflets and bright orange-red blooms that sparkle in terminals in the Fall, much like 'Cassia.'