The topic Equisetaceae is discussed in the following articles:

annotated classification

  • TITLE: Equisetopsida (plant class)
    SECTION: Annotated classification
    Order EquisetalesTwo families: Calamitaceae, extinct tree horsetails; and Equisetaceae, herbaceous living horsetails and fossil allies with needlelike leaves in whorls along the stem; 15 extant species in the genus Equisetum and several extinct species in the genus...