Gnetales is an order of plants. There are 43 species of Gnetales, in 1 genus and 1 family. This order has been around since the capitanian age. It includes groups like Gnetums. Reproduction is dioecious.
Definition: a plant that produces wood as its structural tissue. Wood is a structural cellular adaptation that allows woody plants to grow from above ground stems year after year, thus making some woody plants the largest and tallest terrestrial plants. Wood is usually primarily composed of xylem cells with cell walls made of cellulose and lignin