Yikes. Okay, all conifers are in an entirely seperate division from other cone producing plants, but are all contained in the the same order. Of cone producing plants (cycadophyta), there are, by division, coniferophyta (conifers, such as giant sequoia), cycadophyta (cycads, such as sago palm), gnetophyta (such as welwitschia), and ginkgophyta (with only one species, ginkgo biloba). As with conifers, most of these divisions contain a single order, so it would be nonsensical to list pines and firs as more closely related to welwitschia than cypress, sequoia, and yew.