1) Order juglandales 2) Plant order 
Juglandales is a botanical name for an order of flowering plants. This order was recognised in several systems (e.g. Engler system and Wettstein system). The Cronquist system placed the order in the subclass Hamamelidae, as comprising the families Juglandaceae and Rhoipteleaceae, the latter consisting of only a single species. In the APG II system...
(from the article `angiosperm`) ...and leaf veins. Flowers in catkins, the pistillate ones with a single carpel. A single family, Leitneriaceae, with only Leitneria floridana.Order ...
[n] - coextensive with the family Juglandaceae