Tree, Yellow Poplar
Trunk -Straight, columnar. Deeply fissured, medium gray to dark brown bark. .
Foliage - Leaves are simple, alternate and long-stalked. Shape is ovate to squarish, 2 - 3" long and as wide, 2 - 4 paired lobes, with the tip appearing almost blunt. They are shiny dark green above, paler beneath aId glabrous on both surfaces. Yellow fall color. Readily identified when deciduous by the somewhat flattened, two-edged leaf buds.
Flowers/fruit - Chartreuse 2" tulip-shaped, 6-petaled flowers with orange bases, bloom in late spring well after the leaves develop, and may be hidden among them. Flowers usually begin blooming on 10 -12 year old trees. The fruit is a 2 1/2 - 3", light brown cone, composed of many overlapping, 1 - 2 seeded, 1 1/2" long samaras which ripen and are released in the fall.
Cultivars - 'Arnold' is useful for narrow planting areas; blooms 2 - 3 years after planting. 'Majestic Beauty' has leaves edged with yellow and a more moderate growth rate and size.
Significant pest problems are aphids and powdery mildew.