Angela's Conifer Page Phylum Coniferophyta - The Conifers Conifers are by far the largest of the 4 gymnosperm divisions.
Coniferous trees are among the tallest, largest and oldest organisms on Earth.
Redwoods, found in Northern California can grow to be more than 110 meters tall. The largest organisms alive are the giant sequoias. Nearly all conifers are evergreens, they retain their leaves throughout the year. Their needle-shaped leaves are adapted to any conditions. Photosynthesis can even occur on a mildly sunny day in winter.