Devil’s backbone can reach a mature height of up to 10 feet tall when grown outdoors, but indoor plants are more likely to top out around 4 or 5 feet. As the plant grows, you’ll need to repot it.

Biradiata references the two ray petals in each flower. Researchers working on the plant have also referred to it as the "Wooly Devil." "I’m excited to discover whether there are other ...