The genus name Robinia was given in honor of the French botanist and gardener Jean Robin, who contributed to the introduction and spread of the species in Europe during the 17th century. The species name pseudoacacia means “false acacia,” as the plant resembles species of the genus Acacia without belonging to it. For this reason, it is also commonly known as false acacia.

Black locust is a deciduous tree belonging to the family Fabaceae. It is native to North America but has been introduced and naturalized in many parts of Europe, Asia and the Mediterranean region. In Greece, it is widely cultivated in urban and rural areas and, in some cases, it grows spontaneously.

The species is fast-growing and can reach a height of 15–25 meters. It typically has a straight trunk with deeply furrowed, dark grey bark in mature trees. The leaves are compound, pinnate, composed of many small oval leaflets with a bright green color. At the base of young shoots, characteristic spines may appear, which are modified stipules.

The flowers appear from May to June. They are white, highly fragrant and arranged in hanging racemes up to 20 cm long. The abundant flowering attracts large numbers of bees and other pollinating insects, making black locust one of the most important melliferous trees. The fruits are elongated pods containing several seeds and often remain on the tree throughout winter.

The black locust is highly adaptable and can grow even in poor or degraded soil. It prefers sunny locations and shows strong tolerance to drought, wind and low temperatures. Like many members of the Fabaceae family, it can fix atmospheric nitrogen through symbiotic microorganisms in its roots, thereby improving soil fertility.

Propagation is mainly carried out by seed, as well as by root suckers that develop from the root system. The species has strong resprouting ability and can easily establish in new areas. It is generally resistant to pests and diseases, although it may occasionally be affected by wood-boring insects or fungal pathogens.

Black locust has significant economic and ecological value. Its wood is hard and durable and is used in construction, fencing, furniture and various woodworking applications. It is also an important honey plant, producing the well-known acacia honey. In addition, it is used in reforestation, erosion control and as an ornamental tree in parks, roadsides and large gardens.