North America Native Plant

Haresfoot Locoweed

Botanical name: Oxytropis lagopus var. atropurpurea

USDA symbol: OXLAA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Aragallus atropurpureus Rydb. (ARAT4)   

Haresfoot Locoweed: A Hidden Gem of the Northern Great Plains If you’re looking to add authentic prairie character to your native garden, haresfoot locoweed (Oxytropis lagopus var. atropurpurea) might just be the specialized wildflower you’ve been searching for. This charming perennial forb brings a touch of the wild Northern Great ...

Haresfoot Locoweed: A Hidden Gem of the Northern Great Plains

If you’re looking to add authentic prairie character to your native garden, haresfoot locoweed (Oxytropis lagopus var. atropurpurea) might just be the specialized wildflower you’ve been searching for. This charming perennial forb brings a touch of the wild Northern Great Plains right to your backyard, complete with silvery foliage and striking purple blooms.

What Makes Haresfoot Locoweed Special?

Haresfoot locoweed is a true native of the American Great Plains, naturally occurring in Montana, South Dakota, and Wyoming. As a member of the legume family, this perennial forb produces clusters of deep purple to violet flowers that create stunning displays against its distinctive silvery-hairy foliage. The plant gets its common name from its fuzzy seed pods that somewhat resemble a hare’s foot.

This native wildflower grows naturally across the northern Great Plains states, where it has adapted to harsh prairie conditions over thousands of years. You’ll find it thriving in the grasslands and prairies of Montana, South Dakota, and Wyoming, where it plays an important role in the local ecosystem.

Garden Appeal and Landscape Role

While haresfoot locoweed may not be the showiest plant in your garden, it brings authentic prairie character that’s hard to replicate with non-native alternatives. The silvery, densely hairy foliage creates interesting textural contrast, while the purple flower spikes add vertical interest during the blooming season.

This plant works best in:

  • Native prairie restorations
  • Wildflower meadows
  • Xerophytic (drought-tolerant) gardens
  • Educational or demonstration native plant gardens

Supporting Local Wildlife

As a native legume, haresfoot locoweed provides valuable nectar and pollen for native bees, butterflies, and other pollinators. The flowers are particularly attractive to specialized native bees that have co-evolved with prairie legumes. Additionally, the plant fixes nitrogen in the soil, improving growing conditions for neighboring prairie plants.

Growing Conditions and Hardiness

Haresfoot locoweed is adapted to the challenging conditions of the Great Plains and thrives in USDA hardiness zones 3-6. This tough perennial prefers:

  • Full sun exposure
  • Well-drained soils (clay, loam, or sandy soils)
  • Low to moderate moisture once established
  • Minimal soil amendments or fertilizers

Once established, this prairie native is remarkably drought tolerant and requires very little maintenance, making it perfect for low-water landscaping.

Planting and Care Tips

Growing haresfoot locoweed from seed requires some patience and preparation. Like many prairie legumes, the seeds have a hard coat that benefits from scarification (lightly scratching or nicking the seed coat) before planting. You can also try a cold stratification period of 30-60 days to improve germination rates.

Plant seeds in fall for natural winter stratification, or start them indoors in late winter. Once seedlings are established, transplant them to their permanent location in spring after the last frost.

Care requirements are minimal:

  • Water regularly during the first year to establish deep roots
  • Avoid fertilizers, which can promote excessive leaf growth
  • Allow natural dormancy in winter
  • Consider occasional controlled burns or mowing if recreating prairie conditions

Is Haresfoot Locoweed Right for Your Garden?

Haresfoot locoweed is best suited for gardeners who appreciate subtle prairie beauty and want to support native ecosystems. It’s an excellent choice if you’re creating a native plant garden in its natural range or want to attract specialized prairie pollinators.

However, this plant may not be ideal if you’re looking for bold, showy flowers or need plants that perform well in amended, heavily watered garden soils. Its specialized nature and limited commercial availability also make it more of a niche choice for dedicated native plant enthusiasts.

For gardeners in Montana, South Dakota, and Wyoming, haresfoot locoweed offers an authentic way to celebrate and preserve the unique beauty of their local prairie heritage while providing valuable habitat for native wildlife.

Haresfoot Locoweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Oxytropis DC. - locoweed

Species

Oxytropis lagopus Nutt. - haresfoot locoweed

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA