Acer negundo

Boxelder is a fast-growing, weak-wooded, suckering, medium-sized, deciduous tree that typically grows 30-50 (less frequently to 70) tall with an irregular rounded crown. It is widely distributed throughout the U.S. except in Alaska and Hawaii. In Missouri, it typically occurs in moist to wet soils along streams, river flood plains and low woods (Steyermark). Although it is a maple and produces the familiar maple fruits (paired samaras), it differs from most maples by having odd-pinnate compound leaves (each with 3-5 toothed leaflets) and by being dioecious (separate male and female trees). Lea... (more)

Boxelder is a fast-growing, weak-wooded, suckering, medium-sized, deciduous tree that typically grows 30-50 (less frequently to 70) tall with an irregular rounded crown. It is widely distributed throughout the U.S. except in Alaska and Hawaii. In Missouri, it typically occurs in moist to wet soils along streams, river flood plains and low woods (Steyermark). Although it is a maple and produces the familiar maple fruits (paired samaras), it differs from most maples by having odd-pinnate compound leaves (each with 3-5 toothed leaflets) and by being dioecious (separate male and female trees). Leaves with three leaflets are most common, and these resemble poison ivy (<i>Toxicodendron radicans</i>) but are arranged opposite on the stem. Posion ivy leaves are arranged alternately. Leaves are light to medium green, turning an undistinguished yellow in fall. Greenish yellow flowers appear in pendant clusters in spring on separate male and female trees. Flowers are not showy. Female flowers give way to fruits (samaras) which mature in fall and often persist on the tree well into winter. Fruiting can be abundant. The name box elder (sometimes boxelder) is in reference to a use of the wood for making crates and boxes and the supposed similarity of the leaves to those of elder (<i>Sambucus</i>). Leaves also resemble those of some ashes, hence the additional common name of ash-leaved maple. (less)