Peltophorum is a genus of 5 to 15 species of flowering trees in the family Fabaceae (subfamily Caesalpinioideae), placed within the order Fabales. The genus belongs to the legume family and is closely allied with other caesalpinioid trees known for their showy flowers and pinnate foliage.
The species are medium-sized to large trees, typically reaching 15 to 25 metres in height, though exceptional specimens can grow to 50 metres. They are found in tropical regions spanning northern South America, central and southern Africa, Indochina, southeastern China, Malesia, New Guinea, and northern Australia, reflecting a pantropical but discontinuous distribution.
Notable members include Peltophorum pterocarpum, widely planted as an ornamental and shade tree throughout tropical Asia and beyond, and Peltophorum africanum, a drought-tolerant species prized in southern African landscapes. Peltophorum dubium is a significant timber and ornamental tree of subtropical South America, particularly Argentina, Brazil, and Paraguay.
Etymology
The name Peltophorum literally means "shield-bearing," derived from the Greek peltē (πέλτη, "shield") combined with -phoros ("bearing") and a Neo-Latin suffix -um. It refers to the distinctive peltate, or shield-shaped, form of the plant's stigma.
Distribution
Peltophorum is native to disjunct tropical regions across the globe: northern South America, central and southern Africa, Indochina, southeastern China, Malesia, New Guinea, and northern Australia. Several species — most notably P. pterocarpum — have been widely introduced and naturalised well beyond their native ranges as ornamental and street trees throughout the tropics.
Cultivation
Peltophorum pterocarpum (copper pod or yellow flamboyant) is one of the most widely cultivated tropical street and park trees, valued for its spreading canopy, clusters of bright yellow flowers, and tolerance of heat and seasonal drought. Species in this genus generally prefer full sun, well-drained soils, and a warm tropical or subtropical climate; they are intolerant of frost. Peltophorum africanum is similarly planted in southern African gardens and along roadsides for shade and ornament.
