Trees, Shrubs and Woody Vines
Hypericum hypericoides (formerly Ascyrum hypericoides)
St. Andrew’s cross is a small, sprawling shrub up to 3 feet tall, with smooth, opposite leaves, reddish flaky bark, and distinctive yellow flowers with 4 petals. It grows in the southern half of Missouri.
Missouri has seven species of elms that grow in natural settings. Elms have tough, shock-resistant wood. In the past, some species were favorite shade trees, which is why so many towns have Elm Streets. But elms have suffered for a century from a devastating fungal disease.
About Trees, Shrubs and Woody Vines in Missouri
There are no sharp dividing lines between trees, shrubs, and woody vines, or even between woody and nonwoody plants. “Wood” is a type of tissue made of cellulose and lignin that many plants develop as they mature — whether they are “woody” or not. Trees are woody plants over 13 feet tall with a single trunk. Shrubs are less than 13 feet tall, with multiple stems. Vines require support or else sprawl over the ground.