1. Ulmaceae The Elm Family
Ulmaceae
The Elm Family

2. Ulmaceae Deciduous group with lots of variation Trees and shrubs
15-18 genera and 150 species
14 trees and 2 shrubs native to North America
Temperate to tropical environments

3. Leaf structure Alternate and simple Base often oblique
Margins entire or serrate
Venation pinnate to palmate- pinnate

4. Flowers and Fruit Flowers are perfect or imperfect and lack petals
Fruit are evenly winged samara or drupe

5. Ulmus americana American elm
Tree that shades most streets and boulevards in FM area
Tolerates wide variety of temperatures

6. Celtis occidentalis Hackberry
Varies in size from shrub to trees (100+ feet)
Usually found on rich, moist soils

7. Other Ulmaceae examples
Tatar Wing Celtis (Pteroceltis tatarinowii )
Japanese zelkova (Zelkova serrata)
Cedar Elm (Ulmus crassifolia)

8. References Websites near all photos
References
Walters, Dirk., Keil, David., Murrell, Zack Vascular Plant Taxonomy. 5th ed. U.S.: Kendall/Hunt Print.
United States Department of Agriculture-Natural Resources Conservation Service. Plant Fact Sheet. “Common Hackberry.” 1 Feb [Internet]
Websites near all photos