South Jersey Hopniss (American Groundnut)

Apios americana

Seeds per packet ~ 20

Packed for 2025  BOTANICAL SAMPLE

Apios americana, sometimes called the American groundnut, potato bean, hopniss, Indian potato, hodoimo, America-hodoimo, cinnamon vine, or groundnut (not to be confused with other plants in the subfamily Faboideae sometimes known by that name) is a perennial vine that bears edible beans and large edible tubers.

Apios americana, commonly known as the American groundnut, is a perennial vine native to North America. It's part of the legume family (Fabaceae) and is known for its edible tubers and beans. 

Apios americana is a climbing vine that can reach up to several meters in length. It uses tendrils to attach to and climb over other plants and structures. As a perennial, this plant returns year after year from the same root system. The leaves are compound with 5 to 7 leaflets that are arranged pinnately (like a feather). Each leaflet is ovate to lanceolate in shape, with a pointed tip and a smooth margin.

The flowers are small, usually appearing in dense clusters. They are typically a rich, reddish-brown or sometimes purplish color, with a typical pea-flower shape. The blooming period usually occurs in late summer.

The most notable feature of Apios americana is its edible tubers, which grow on a rhizome. These tubers are round or irregular in shape, and can vary significantly in size. The tubers are rich in protein and carbohydrates, making them a valuable food source.

Apios americana is commonly found in wetlands, along riverbanks, and in moist woodlands. It prefers sunny to partially shaded areas with rich, moist soil. The plant provides habitat and food for various wildlife species. Its flowers attract pollinators, while the tubers can be a food source for animals.

The tubers have been traditionally used as food by Indigenous peoples and early settlers in North America. They can be cooked in various ways, similar to potatoes. With its attractive flowers and vining habit, it can be used in gardens for ornamental purposes, especially in naturalized or wild garden settings.

Apios americana is not only valued for its edible parts but also for its role in ecological restoration and permaculture projects due to its nitrogen-fixing ability, which can improve soil health.