Ulmaceae -- the elm family (15-18/150; Temperate to tropical; especially in the Northern Hemisphere)
Habit shrubs or trees, leaves often asymmetric at the base
Leaves alternate, simple, stipulate
Inflorescences solitary or clustered axillary flowers
Special floral characters superior ovary
Calyx 4-8 sepals distinct or basally connate
Corolla absent
Androecium 4-8 stamens, distinct; opposite and sometimes adnate to the sepals
Gynoecium 2 carpels; connate; superior; 1 locule with 1axile ovule; 2 styles sometimes winged or forked
Fruit= samara or drupe
(Floral formula: Ca 4-8 A 4-8 G 2 )