North America Native Plant

Arkansas Meadow-rue

Botanical name: Thalictrum arkansanum

USDA symbol: THAR

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Arkansas Meadow-Rue: A Rare Native Treasure Worth Protecting Meet Arkansas meadow-rue (Thalictrum arkansanum), a botanical mystery that’s as elusive as it is intriguing. This native perennial forb represents one of those special plants that reminds us why conservation matters in our home gardens and natural landscapes. What Makes Arkansas Meadow-Rue ...

Rare plant alert!

Region: Arkansas

Status: S2Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Region: Arkansas

Arkansas Meadow-Rue: A Rare Native Treasure Worth Protecting

Meet Arkansas meadow-rue (Thalictrum arkansanum), a botanical mystery that’s as elusive as it is intriguing. This native perennial forb represents one of those special plants that reminds us why conservation matters in our home gardens and natural landscapes.

What Makes Arkansas Meadow-Rue Special

Arkansas meadow-rue is a delicate perennial forb—essentially a non-woody flowering plant that dies back each winter and returns from its roots each spring. As a member of the buttercup family, it shares the graceful, airy characteristics that make meadow-rues beloved by gardeners who appreciate subtle beauty over flashy blooms.

Where You’ll Find This Rare Beauty

This native species calls the south-central United States home, with its natural range limited to Arkansas, Oklahoma, and Texas. Its restricted distribution is part of what makes this plant so special—and so vulnerable.

A Conservation Concern

Here’s where things get serious: Arkansas meadow-rue carries a global conservation status of S2Q and a state rarity status of S2 in Arkansas. In plain English, this means it’s considered rare and potentially at risk. This isn’t just another pretty wildflower—it’s a plant that needs our attention and protection.

If you’re considering growing Arkansas meadow-rue, please only source it from reputable native plant nurseries that ethically propagate their stock. Never collect from wild populations, as this could further threaten already vulnerable communities.

Garden Potential and Growing Considerations

While specific cultivation information for Thalictrum arkansanum is limited due to its rarity, meadow-rues in general are wonderful additions to native plant gardens. They typically prefer:

  • Partial shade to dappled sunlight
  • Moist, well-draining soil
  • Protection from harsh afternoon sun
  • Consistent moisture during growing season

As a forb, Arkansas meadow-rue would likely work well in woodland gardens, native plant collections, or naturalized areas where it can establish slowly and naturally.

The Bigger Picture

Growing rare native plants like Arkansas meadow-rue isn’t just about adding something unique to your garden—it’s about participating in conservation. Every responsibly grown specimen represents genetic diversity preserved and potentially contributes to our understanding of these special plants.

However, due to its rarity and limited availability, most gardeners might consider growing other Thalictrum species that are more readily available and better documented. These cousins can provide similar aesthetic benefits while supporting local ecosystems.

Supporting Native Plant Conservation

Whether or not you grow Arkansas meadow-rue specifically, you can support the conservation of rare native plants by:

  • Choosing native plants for your garden whenever possible
  • Supporting nurseries that specialize in native species propagation
  • Learning about the rare plants in your area
  • Never collecting plants from the wild
  • Participating in local native plant society activities

Arkansas meadow-rue may be rare, but it represents something important: the incredible diversity of native plants that make our regional ecosystems unique. By being mindful gardeners and plant stewards, we can help ensure that future generations will have the chance to appreciate these botanical treasures.

Arkansas Meadow-rue

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Magnoliidae

Order

Ranunculales

Family

Ranunculaceae Juss. - Buttercup family

Genus

Thalictrum L. - meadow-rue

Species

Thalictrum arkansanum B. Boivin - Arkansas meadow-rue

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