Begonia rex 'Macarena', characterized by its vibrant foliage, showcases a rich infusion of colors. Its large oval leaves exhibit a captivating blend of metallic green and pink, adorned with silver markings that enhance its visual appeal. This delightful plant thrives in humid environments.

Genus name was established in mid 18th century: modern Latin, named in honour of the French administrator and amateur botanist Michel Bégon (1638–1710) by the botanist Charles Plumier (1646–1704), who discovered the plant on the island of Santo Domingo.