American Pokeweed (Phytolacca americana)

American Pokeweed (Phytolacca americana) 

American pokeweed is a native plant in Wisconsin and shows up quickly wherever ground has been disturbed. It moves into clearings, pastures, fencerows, woodland openings, and other edge habitats, taking advantage of full sun and moist soils. Its fast growth and heavy seed production let it get established ahead of slower species, and once it’s in place it helps hold bare ground while other plants return. Even though it’s often dismissed as a weed because of its toxicity and bold growth, pokeweed still plays a part in early succession and supports a surprising amount of wildlife.

The plant is easy to recognize. It can reach four to ten feet, with green, red, or purplish stems and large, smooth‑edged leaves that may stretch up to twenty inches long. The flowers are small and white to pink, only about a quarter inch across, made up of four or five sepals and no petals. They’re arranged along long, slender racemes that later develop into berries. By late summer and fall, those berries turn a deep purplish‑black.

The fruit is poisonous to people and many domestic animals, but it’s heavily used by wildlife. Birds such as robins, bluebirds, cardinals, cedar waxwings, catbirds, and thrashers feed on the berries and spread the seeds as they move through the landscape. Mammals including raccoons, opossums, squirrels, and gray foxes also eat the fruit. In this way pokeweed becomes part of the seasonal food supply, offering energy to a wide range of species across its native range.

Sources:

USDA NRCS PLANTS Database – Phytolacca americana 

 Flora of North America – Phytolacca americana 

 University of Wisconsin–Madison Herbarium (WIS) – Species Records for Phytolacca americana 

 Illinois Wildflowers – “American Pokeweed” 

Missouri Botanical Garden Plant Finder – “Phytolacca americana” 

Penn State Extension – “Pokeweed” Virginia Tech Dendrology – “Pokeweed (Phytolacca americana)”

 

(SF)