Definition that contains order polygonales
- family polygonaceae a family of plants of order Polygonales chiefly of the north temperate zone; includes the buckwheats
- polygonaceae a family of plants of order Polygonales chiefly of the north temperate zone; includes the buckwheats
- buckwheat family a family of plants of order Polygonales chiefly of the north temperate zone; includes the buckwheats