👉 Thalassiarch is a type of tree species in the genus Thalassia. These trees are known for their large, sprawling leaves and their ability to produce edible thalloides (thaliana), which can be used as food or medicine. They also have a distinctive coloration that varies from green to yellow and orange, depending on the species. The thalassiarch is often grown in gardens and parks, and it has been used in traditional Chinese medicine for centuries.