Which term describes trees that are dependent on fire?

The term that describes trees that are dependent on fire is "serotinus." Serotinous trees have adaptations that allow them to reproduce only after experiencing fire; for example, their cones may remain closed and hang onto the tree for several years until released by heat from a fire. This strategy promotes seed germination in nutrient-rich, cleared ground that follows a fire, giving the seedlings a competitive advantage.

The other terms refer to different concepts in ecology. "Succulent" describes plants that have thick, fleshy tissues adapted to store water, typically found in arid environments. "Saprophyte" refers to organisms that feed on decaying organic matter, generally not trees, and is more commonly associated with fungi. "Halophyte" denotes plants that thrive in high salinity environments, such as coastal areas, which is unrelated to the dependence on fire. Understanding these distinctions highlights how serotinous trees play a unique and crucial role in their specific ecosystems.