Why can some Erica species regrow after a fire?

Some species within the genus Erica, which belongs to the Ericaceae family, are able to regrow after a fire because they possess starch-rich tubers or burls. These underground structures allow the plants to resprout even if the above-ground portions are destroyed by a blaze.12

This adaptation is particularly common among species that have evolved to live in environments where water or nutrients may be limited, such as those found in Mediterranean climates. By relying on these underground woody organs, these plants can rapidly develop new green shoots in the wake of a fire, ensuring their survival in fire-prone habitats.12