North America Native Plant

Woodland Sensitive Pea

Botanical name: Chamaecrista calycioides

USDA symbol: CHCA26

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Cassia aristellata (Pennell) Cory ex Cory & Parks (CAAR9)  âš˜  Cassia calycioides DC. ex Collad. (CACA30)   

Woodland Sensitive Pea: A Lesser-Known Texas Native Worth Discovering Meet the woodland sensitive pea (Chamaecrista calycioides), a charming native perennial that’s quietly making its home in the Lone Star State. While this plant might not be as famous as its cousin the partridge pea, it has its own unique appeal ...

Woodland Sensitive Pea: A Lesser-Known Texas Native Worth Discovering

Meet the woodland sensitive pea (Chamaecrista calycioides), a charming native perennial that’s quietly making its home in the Lone Star State. While this plant might not be as famous as its cousin the partridge pea, it has its own unique appeal for gardeners interested in supporting native Texas flora.

What Makes Woodland Sensitive Pea Special?

This delightful little forb belongs to the legume family and brings that classic pea-family charm to native plant gardens. As a true Texas native, woodland sensitive pea has spent countless generations adapting to local conditions, making it a naturally resilient choice for regional gardeners who want to work with nature rather than against it.

The plant is classified as a perennial forb, which means it’s an herbaceous plant without woody stems that comes back year after year. Unlike shrubs or trees, it puts its energy into soft, green growth that dies back seasonally while the root system persists underground, ready to emerge again when conditions are right.

Where You’ll Find It Growing Wild

Currently, woodland sensitive pea is documented as native to Texas, where it has found its ecological niche in the state’s diverse landscapes. This limited distribution makes it a true regional specialty – a plant that’s perfectly adapted to Texas conditions.

Why Consider Woodland Sensitive Pea for Your Garden?

Here’s where we need to be honest with you: woodland sensitive pea is one of those diamond in the rough native plants that hasn’t received much attention in the horticultural world yet. While we know it’s a native Texas perennial with legume family roots, detailed information about its specific growing requirements, appearance, and garden performance is surprisingly limited.

However, this shouldn’t necessarily discourage adventurous native plant enthusiasts! Here’s what we do know makes it appealing:

  • It’s a true Texas native, meaning it’s naturally adapted to local climate conditions
  • As a perennial, it should return year after year once established
  • Being part of the legume family, it likely helps improve soil nitrogen levels
  • Native plants typically require less water and maintenance than non-natives once established

The Challenge (And Opportunity) of Growing Woodland Sensitive Pea

Here’s the thing about woodland sensitive pea – it’s what we might call a gardener’s mystery plant. While it has been documented botanically (you might see it listed under its older scientific names Cassia aristellata or Cassia calycioides), specific cultivation information is scarce. This presents both a challenge and an opportunity for dedicated native plant gardeners.

If you’re interested in trying this plant, your best bet would be to:

  • Contact native plant societies in Texas for potential seed or plant sources
  • Check with botanical gardens or native plant nurseries that specialize in rare Texas natives
  • Connect with local naturalists who might know where it grows wild (for observation purposes only)

Making the Decision: Is This Plant Right for You?

Woodland sensitive pea might be perfect for you if you’re:

  • An experienced native plant gardener looking for something unique
  • Interested in supporting lesser-known Texas native species
  • Willing to experiment and document your growing experiences
  • Part of a native plant society or botanical group that shares knowledge

However, you might want to start with better-documented native alternatives if you’re:

  • New to native plant gardening
  • Looking for reliable, well-tested garden performers
  • Needing plants with specific known characteristics for a designed landscape

The Bottom Line

Woodland sensitive pea represents one of those fascinating native plants that’s still waiting for its moment in the horticultural spotlight. While we can’t provide detailed growing instructions or guarantee garden performance, we can say that supporting native Texas species – even the lesser-known ones – is always a worthy endeavor for conservation-minded gardeners.

If you do decide to seek out and grow woodland sensitive pea, consider yourself a pioneer in native plant cultivation. Document your experiences, share your successes (and failures), and help build the knowledge base for future gardeners interested in this intriguing Texas native.

Woodland Sensitive Pea

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

Chamaecrista (L.) Moench - sensitive pea

Species

Chamaecrista calycioides (DC. ex Collad.) Greene - woodland sensitive pea

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