Cladrastis

Cladrastis is a small genus of trees in the family Fabaceae. The genus name comes from the Greek words "klados" (branch) and "keras" (horn), referring to the horn-like appearance of the petal claws in some species. These trees are native to temperate regions of Asia and North America. They are deciduous, meaning they shed their leaves seasonally, and typically grow to moderate heights, often with a rounded or spreading crown.

The leaves of Cladrastis species are pinnately compound, usually with an odd number of leaflets. The flowers are typically white and fragrant, borne in large, showy panicles. They bloom in late spring or early summer, often after the leaves have fully emerged. The fruit is a pod, which is usually flattened and contains several seeds.

One of the most well-known species is Cladrastis kentukea, commonly known as the American yellowwood or Kentucky yellowwood. This species is valued for its ornamental qualities, including its attractive white flowers, smooth gray bark, and vibrant yellow fall color. Other species, such as Cladrastis platycarpa, are found in East Asia. The wood of Cladrastis trees is often dense and durable, though it is not typically harvested on a large commercial scale due to the relatively limited size and availability of the trees. Cladrastis species are generally hardy and adaptable, preferring well-drained soils and full sun.