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The Fagales are an order of flowering plants, including some of the best known treeThis article is about the biological organisms known as trees. For other meanings of the word see tree (disambiguation). oak tree in Denmark A tree can be defined as a large perennial woody plant. Though there is no set definition of size, it is generallys. They belong among the rosid group of dicotyledons. Families typically included here are listed at right, though the KewThe Royal Botanic Gardens, Kew are extensive gardens and botanical glasshouses between Richmond upon Thames and Kew in southwest London. They originated in the exotic garden at Kew House formed by Lord Capel of Tewkesbury, enlarged and greatly extended by checklist (see external link below) only includes the first four families listed.

In the older Cronquist systemThe Cronquist system is a scheme for the classification of flowering plants (or angiosperms). This system was developed by Arthur Cronquist in his texts An Integrated System of Classification of Flowering Plants (1981) and The Evolution and Classification, these plants were split into three different orders, placed among the Hamamelidae . The Casuarinales comprised the single family Casuarinaceae, the Juglandales comprised the Juglandaceae and Rhoipteleaceae, and the Myricales comprised the remaining forms (plus Belanops ). The change is due to studies suggesting that the Myricales, so defined, are paraphyleticIn phylogenetics, a grouping of organisms is said to be paraphyletic if all the members of the group have a common ancestor but the group does not include all the descendants of the common ancestor. Groups which include all the descendants of a common anc to the other two groups.

External link

• Kew checklist - Fagales