Joseph Decaisne (1807 – 1882) was born in Brussels, Belgium, but was working as a French botanist and agronomist exclusively in Paris.
In 1824 Decaisne started as a gardener at the Muséum national d’histoire naturelle (French Museum of natural history) and in 1832 he became the chief of the sowing department.
Decaisne began to study tropical plants, which travellers brought back from Asia.
In 1854 he was one of the foundation members
of the Botanical Society of France.
Joseph Decaisne died in January 1882 in Paris.
His author abbreviation is: Decne.