Plant Profile: Lespedeza cuneata

Sericea is a perennial herb and a broadleaf annual weed belonging to the legume family, originating from Asia and Australia. It was introduced to the United States in North Carolina in 1896, primarily for erosion control and as livestock forage. This plant can grow multi-branched up to 6 feet tall and features dense, compound leaves. Its flowers can be found either alone or in clusters of up to three, typically located in the leaf axils. The root system consists of a long taproot, making manual removal extremely difficult.

In many regions, Sericea is regarded as an invasive species. It may exhibit allelopathic properties, releasing chemicals that hinder the growth of surrounding plants. This species tends to create vast monocultures and establishes a significant seed bank in the soil, which contributes to its persistence in a given area. Additionally, its high tannin levels render it unappealing to livestock and most native wildlife. Sericea thrives in full sunlight and has low tolerance for shade.

To manage its spread, mowing the plants during their flowering phase for two to three consecutive years can be effective. It is advisable to cut the plants as close to the ground as possible.