Iresine, sometimes known as bloodleaf, is a relatively uncommon plant. In all, there are about 30 species of Iresine plants in the genus native to South America, especially Brazil. They range from small to medium-sized shrubs, and are perennial.
The flowers on Bloodleaf plants are unremarkable, consisting of small greenish or white flowers on small stems, but instead, they are commonly grown for their striking foliage. Like other fleshy shrubs, it's possible to keep them smaller by pinching off tall shoots. In terms of culture, these are "warm house" plants and cannot tolerate lower temperatures or cold, dry air. They are best grown in window boxes or bathrooms, which often have warmth and humidity, or if you have a glasshouse they will thrive there.