North America Native Plant

Sensitive Partridge Pea

Botanical name: Chamaecrista nictitans patellaria

USDA symbol: CHNIP

Life cycle: annual

Habit: subshrub

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Native to Navassa Island âš˜ Non-native, reproduces and persists in the wild in Pacific Basin excluding Hawaii âš˜ Native to Puerto Rico âš˜ Native to the U.S. Virgin Islands  

Sensitive Partridge Pea: A Tropical Beauty with Limited Range Meet the sensitive partridge pea (Chamaecrista nictitans patellaria), a charming little plant that might just surprise you with its delicate nature and tropical appeal. Also known simply as the sensitive plant, this annual to perennial herb brings a touch of the ...

Sensitive Partridge Pea: A Tropical Beauty with Limited Range

Meet the sensitive partridge pea (Chamaecrista nictitans patellaria), a charming little plant that might just surprise you with its delicate nature and tropical appeal. Also known simply as the sensitive plant, this annual to perennial herb brings a touch of the Caribbean to gardens where it can thrive.

What Makes This Plant Special

The sensitive partridge pea belongs to the legume family and grows as a forb herb – basically, it’s a non-woody plant that puts its energy into leaves and flowers rather than building thick, sturdy stems. Think of it as the gentle cousin in the plant world, preferring to stay low and leafy rather than towering overhead.

This plant can be either annual or perennial depending on growing conditions, giving it flexibility that many gardeners appreciate. Its growth habit keeps it relatively modest in size, making it suitable for various garden spaces without overwhelming other plants.

Where Does It Come From?

The sensitive partridge pea has quite the island-hopping background! It’s native to some pretty exotic locations including Navassa Island, Puerto Rico, and the U.S. Virgin Islands. You’ll also find it growing in Hawaii and Palau, though in these areas it’s considered non-native but has naturalized successfully.

Should You Grow It?

Here’s where things get interesting – and a bit complicated. While this plant isn’t considered invasive or harmful, its native range is quite limited and specific. If you’re gardening outside its native Caribbean range, you might want to consider some alternatives.

For gardeners in tropical and subtropical areas, the sensitive partridge pea could be an intriguing addition, but keep in mind that information about this specific variety is somewhat limited. This means you’ll be doing a bit of gardening detective work!

Growing Conditions and Care

Unfortunately, specific growing information for Chamaecrista nictitans patellaria is not widely documented. However, based on its native range in tropical islands, it likely prefers:

  • Warm, tropical to subtropical climates
  • Well-draining soils
  • Adequate moisture without waterlogging
  • Full sun to partial shade

As with many legumes, this plant may help improve soil nitrogen levels, potentially benefiting neighboring plants.

Consider Native Alternatives

If you’re gardening outside the Caribbean region, consider exploring native partridge pea species or other native legumes in your area. These alternatives will provide similar ecological benefits while supporting your local ecosystem more effectively.

Native plants typically require less maintenance, support local wildlife better, and are more likely to thrive in your specific growing conditions.

The Bottom Line

The sensitive partridge pea is an interesting plant with a limited but specific native range. While it’s not problematic where it has naturalized, gardeners should carefully consider whether it’s the right choice for their location and garden goals. When in doubt, choosing plants native to your region is always a safe and environmentally friendly bet.

If you do decide to grow this plant, be prepared for some experimentation, as detailed growing guides are scarce. Sometimes the most rewarding garden adventures come from working with lesser-known species – just be sure to source your plants responsibly!

Sensitive Partridge 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 nictitans (L.) Moench - sensitive partridge pea

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