Jacaranda mimosifolia is a sub-tropical tree native to south-central South America that has been widely planted elsewhere because of its attractive and long-lasting pale indigo flowers. It is also known as the jacaranda, blue jacaranda, black poui, or fern tree. Older sources call it J. acutifolia, but it is nowadays more usually classified as J. mimosifolia. In scientific usage, the name 'jacaranda' refers to the genus Jacaranda, which has many other members, but in horticultural and everyday usage, ...