How do scrubland plants resprout after their aboveground parts burn?

Scrubland plants have evolved specialized mechanisms to survive and recover after wildfires destroy their aboveground parts. Many of these plants rely on protected underground structures that remain intact even when the crown is consumed by flames.1

Key methods of resprouting include:

• Lignotubers: Many shrubs develop a swollen stem base or an underground woody organ known as a lignotuber. Positioned at or just below the soil surface, this organ is shielded from the heat of the fire. Once the fire passes, buds located under the woody outer layers quickly sprout, utilizing the plant's established root system to develop a new crown within months.21
• Underground Stems and Organs: Herbaceous plants often utilize fleshy bulbs, rhizomes, or other underground stems. These structures allow the plant to rapidly produce new green shoots in the wake of a fire.21
• Protected Buds: Some species, such as certain Eucalyptus trees, possess specialized buds protected beneath the thick bark of their trunks. These buds emerge to produce new leaves and branches after the tree has been scorched.2

These adaptations allow scrubland ecosystems to regenerate efficiently following fire-induced disturbances.13