Rhynia

Rhynia is an extinct genus of early vascular plants that lived during the Early Devonian period, approximately 400 million years ago. It belongs to a group of plants known as rhyniophytes, which are among the earliest known land plants with vascular tissue. Rhynia plants played a crucial role in the colonization of land by plants and the evolution of vascular systems. Its simple structure and primitive vascular tissue make it a significant organism in the history of plant evolution.