Noun | 1. | ![]() dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination elm family, family Ulmaceae, Ulmaceae - a dicot family of the order Urticales including: genera Ulmus, Celtis, Planera, Trema hackberry, nettle tree - any of various trees of the genus Celtis having inconspicuous flowers and small berrylike fruits Celtis australis, European hackberry, Mediterranean hackberry - bright green deciduous shade tree of southern Europe American hackberry, Celtis occidentalis - large deciduous shade tree of southern United States with small deep purple berries Celtis laevigata, sugarberry - deciduous shade tree with small black berries; southern United States; yields soft yellowish wood |