Re: Serotiny

Serotiny - Serotiny is an ecological adaptation exhibited by some seed plants, in which seed release occurs in response to an environmental trigger, rather than spontaneously at seed maturation. The most common and best studied trigger is fire, and the term serotiny is often used to refer to this specific case.

In other words - some plants and trees actually need fire for the seeds to work - in some trees, seeds lie for decades until a fire starts the process.

Some closeups: