Wild Strawberry Wild Violet Woodsorrel, Creeping Woodsorrel, Yellow Yarrow Yellow Foxtail Yellow Nutsedge Yellow Thistle Yellow Woodsorrel University Links Control Options Germination Dates Poison ivy can be an erect woody shrub or a climbing vine. The leaves alternate on red stems. The yellowish flowers of poison ivy form in clusters in the axis. The flowers have five green petals and are usually inconspicuous. Poison ivy forms a small creamy white berry in the fall containing a single seed.
Berries generally remain attached to the stem through the winter.
Poison ivy spreads by rhizomes and seeds and prefers shaded areas. Poison ivy has a fibrous root system. Poison ivy is found throughout the midwestern, northern and eastern United States. Young poison ivy plants less than a foot tall with only a single stem can be physically removed with little difficulty, especially in the spring when the ground is soft. Gloves should be worn to avoid allergic reaction.