Araucaria was introduced for erosion control on Oahu. It has become an invader and is slowly dominating ridges and valleys. A trip to the park at St. Lois Heights will show you how the understory and ground cover are eliminated by a dense stand of Araucaria. I have seen one local site of serious erosion that was planted with a pine species. This is surely a mistake and demonstrates the need for basic biological knowledge by land managers.
Some conifers are completely deciduous .
New leaves appear in the spring. Lecture Directory Roots Tap Root System Lateral Root Conifer Roots are very similar to angiosperm roots. There is an embryonic root which develops into a tap root system. Lateral branching occurs. Mycorrhizae are typically associated with conifer roots and play an important role in seedling growth.