Along rocky slopes, woodland edges, and sunny openings in the South Carolina Upstate, you may notice a small pink or purple flower growing among the taller vegetation. One native plant that fits that description is panicled tick-trefoil (Desmodium paniculatum), a member of the pea family.

It is not a large or especially showy wildflower, but it is an important part of the local landscape and provides food for insects and wildlife.

How to Recognize Panicled Tick-Trefoil

Panicled tick-trefoil usually grows upright on slender stems and can reach several feet tall. Its leaves are divided into three leaflets, with the individual leaflets often looking long and narrow.

The flowers are small and usually pink, rose, or purple. Like many plants in the pea family, each flower has a distinctive pea-like shape.

The flowers appear along narrow branching stalks, giving the plant a somewhat open and delicate appearance.

The “Tick-Trefoil” Name

The most memorable part of the plant often appears after flowering.

Panicled tick-trefoil produces flattened seed pods divided into small sections. These sections are covered with tiny hooked hairs that allow them to cling to clothing, animal fur, and almost anything else that brushes against them.

Anyone who has walked through a field or woodland edge and returned home covered in small flat “stickers” may have encountered a type of tick-trefoil.

This hitchhiking method is how the plant spreads its seeds. Deer, raccoons, foxes, and other animals can unknowingly carry the seeds considerable distances.

A Native South Carolina Plant

Panicled tick-trefoil is native to much of the eastern United States, including South Carolina.

It can be found in a variety of habitats, including open woods, rocky hillsides, woodland borders, roadsides, and other sunny or partly shaded areas.

The rocky foothills around Pickens County and the Table Rock area provide the type of habitat where plants like this can thrive.

Important for Pollinators

Although the flowers are small, they provide a food source for native insects.

Bees are among the primary visitors to tick-trefoil flowers. The plant is also associated with several butterflies and other insects that use members of the pea family during different stages of their life cycle.

Native plants like tick-trefoil are an important part of the larger food web. A plant that may seem insignificant can support insects, which in turn provide food for birds and other wildlife.

Food for Wildlife

Birds and small mammals can also eat tick-trefoil seeds.

White-tailed deer may browse the foliage, and the plant can provide useful vegetation along woodland edges and other wildlife habitat.

Its sticky seeds also demonstrate how closely plants and animals are connected. Animals help distribute the seeds as they move through the landscape.

A Wildflower Worth Noticing

Panicled tick-trefoil is easy to overlook among the larger plants of late summer.

Its small pink flowers do not dominate the landscape, but once you know what to look for, the plant becomes much easier to recognize.

The next time you are exploring a rocky trail, woodland edge, or sunny roadside in the South Carolina Upstate, look for its three-part leaves and tiny pink flowers.

And if you walk away with a few little seed segments stuck to your pants later in the season, you may have found out firsthand how tick-trefoil earned its reputation.