Woody plants
Lignophytes
The lignophytes are vascular land plants that produce robust wood through a cambium. The origin of the cambium, a structure which produces wood and thus girth in a plant, allowed plants to grow into trees on the Earth. During the Devonian radiation, the first woody plants arose on the land in a group called the progymnosperms, and trees have been successful wherever water is plentiful.
Ecology & Form
Plants with xylem produced from a bifacial (2-faced) vascular cambium
During the Devonian Period, plants evolved the ability to produce wood, also known as secondary xylem
The most ancestral lignophyte group are the progymnosperms.
All lignophytes have the ability to produce secondary xylem or wood, or lost this ability over time (e.g. waterlilies, monocots)
Classification
└Lignophytes