Dalea purpurea

Dalea purpurea Arkansas

Dalea purpurea, commonly known as purple prairie clover, is a species of flowering plant in the legume family, Fabaceae. It is native to central North America, where it is found in prairies, open woodlands, and along roadsides.

Description

Dalea purpurea is a perennial herb that typically grows to a height of 30-90 cm (12-35 inches). The plant has a deep taproot, which makes it drought-tolerant. The leaves are pinnately compound, with 3-7 narrow leaflets. The flowers are small, purple, and densely packed into cylindrical spikes that bloom from June to September. The fruit is a small legume containing one or two seeds.

Habitat and Distribution

Dalea purpurea is found in a variety of habitats, including prairies, savannas, and open woodlands. It is commonly found in the central United States, from Texas to Minnesota, and east to Ohio. It is also found in parts of Canada, particularly in Manitoba and Saskatchewan.

Ecological Importance

Dalea purpurea plays a significant role in its ecosystem. It is a valuable plant for pollinators, including bees and butterflies. The plant also helps to improve soil health by fixing nitrogen, thanks to its association with rhizobia bacteria.

Uses

Dalea purpurea has been used in traditional medicine by various Native American tribes. It is also used in restoration ecology to restore prairies and other native habitats. Additionally, it is sometimes used in landscaping for its attractive flowers and drought tolerance.

Cultivation

Dalea purpurea is relatively easy to grow from seed. It prefers full sun and well-drained soil. It is tolerant of drought and poor soil conditions, making it a good choice for low-maintenance gardens and restoration projects.

Related Species

Dalea purpurea is part of the genus Dalea, which includes several other species of prairie clovers, such as:

• Dalea candida (white prairie clover)
• Dalea villosa (silky prairie clover)

See Also

• Prairie
• Legume
• Pollinator
• Restoration ecology