North America Native Plant

Partridge Pea

Botanical name: Chamaecrista fasciculata var. macrosperma

USDA symbol: CHFAM2

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Cassia fasciculata Michx. var. macrosperma Fernald (CAFAM)   

Partridge Pea: A Native Annual Worth Getting to Know If you’re looking to add some native charm to your garden while supporting local ecosystems, partridge pea (Chamaecrista fasciculata var. macrosperma) might just be the delightful annual you’ve been searching for. This lesser-known variety of the beloved partridge pea brings all ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Partridge Pea: A Native Annual Worth Getting to Know

If you’re looking to add some native charm to your garden while supporting local ecosystems, partridge pea (Chamaecrista fasciculata var. macrosperma) might just be the delightful annual you’ve been searching for. This lesser-known variety of the beloved partridge pea brings all the benefits of native gardening to a surprisingly compact geographic range.

What Makes This Partridge Pea Special?

Partridge pea belongs to the legume family and grows as what botanists call a forb – basically a fancy way of saying it’s a soft-stemmed plant (not woody like a shrub) that dies back each year. As an annual, this plant completes its entire life cycle in one growing season, making it a fast-acting addition to your garden that won’t overstay its welcome.

You might also encounter this plant listed under its former scientific name, Cassia fasciculata var. macrosperma, though the botanical world has since updated its classification.

Where Does It Call Home?

This particular variety of partridge pea has a fairly exclusive address – you’ll find it naturally occurring in just two states: Maryland and Virginia. This limited native range makes it a true regional specialty, perfect for gardeners in these areas who want to showcase their local flora.

A Word About Rarity

Here’s something important to consider: this variety carries a Global Conservation Status of S5T3, which indicates it has some conservation considerations. If you’re interested in growing partridge pea, make sure you source your seeds or plants responsibly from reputable native plant suppliers who practice sustainable collection methods. Never collect from wild populations!

Why Consider Growing Partridge Pea?

There are several compelling reasons to welcome this native annual into your garden:

  • It’s a true native species, meaning it evolved alongside local wildlife and fits naturally into regional ecosystems
  • As a legume, it can actually improve your soil by fixing nitrogen
  • Being an annual, it offers flexibility in your garden design from year to year
  • Its native status means it’s adapted to local climate conditions

Garden Design Considerations

Since specific growing information for this variety is limited, it’s best to treat it like other members of the partridge pea family. These plants generally work well in:

  • Native plant gardens
  • Wildflower meadows
  • Areas where you want to support local ecosystems
  • Spots that could benefit from soil improvement (thanks to those nitrogen-fixing abilities)

The Bottom Line

Chamaecrista fasciculata var. macrosperma represents a wonderful opportunity for gardeners in Maryland and Virginia to grow something truly local and special. While we don’t have detailed growing guides for this specific variety, its annual nature means you can experiment without making a long-term commitment.

Just remember to source it responsibly due to its conservation status, and consider it as part of a broader native gardening approach that celebrates the unique plants of the Mid-Atlantic region. Sometimes the most rewarding plants to grow are the ones that connect us most directly to our local landscapes.

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 fasciculata (Michx.) Greene - 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