👉 The Geothermarchaeaceae are a family of plants that belong to the order Geothermarchaeales, which is also known as the Grasses or Herbaceous Plants. These plants typically have thick, fibrous stems and leaves that provide nutrients for their roots and can store water in their leaves. They are often found in moist environments, such as forests or swamps, where they grow on a variety of soil types. The family includes over 1,000 species