Pyrogenic flowering

[3] There is high variation in the length of time between when a fire occurs and when pyrogenic flowering is triggered, and it is frequently species specific.

Some suggested stimuli of pyrogenic flowering are the increase in light due to loss of canopy or competition, nutrient changes in the soil, or chemicals associated with fires acting as a trigger.

[2] This flowering adaptation can be found in plants across the world in the Americas, Australia, Europe, and Africa in fire-prone environments such as heathland and savannas.

[3] Fire exclusion has resulted in a declining reproductive output, and thus population size, of some species of pyrogenic plants.

[3] Additionally, evidence suggests that fires that occur outside of normal seasonal burn times (typically summer months) can have negative repercussions on pyrogenic flowering plants, including lower flowering and seed production when compared to fire-exposed plants during normal burn times.