North America Native Plant

Eggers’ Milkpea

Botanical name: Galactia eggersii

USDA symbol: GAEG

Life cycle: perennial

Habit: vine

Native status: Native to the U.S. Virgin Islands  

Eggers’ Milkpea: A Critically Endangered Caribbean Treasure Meet Eggers’ milkpea (Galactia eggersii), one of the rarest plants you’ll probably never see in a garden center – and for very good reason. This little-known perennial herb holds the distinction of being critically imperiled, making it one of the most endangered plants ...

Rare plant alert!

Region: Conservation status by state

Status: S1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Eggers’ Milkpea: A Critically Endangered Caribbean Treasure

Meet Eggers’ milkpea (Galactia eggersii), one of the rarest plants you’ll probably never see in a garden center – and for very good reason. This little-known perennial herb holds the distinction of being critically imperiled, making it one of the most endangered plants in the Caribbean.

What Makes This Plant So Special (and So Rare)

Eggers’ milkpea is what botanists call a forb herb – essentially a non-woody perennial plant that lacks the thick, woody stems you’d find on shrubs or trees. Instead, it keeps its growing points at or below ground level, allowing it to survive year after year in its native habitat.

But here’s the catch: this plant is so rare that it carries a Global Conservation Status of S1, meaning it’s critically imperiled. Scientists estimate there are typically only 5 or fewer locations where this plant still exists, with fewer than 1,000 individual plants remaining in the wild. That’s rarer than many animals on the endangered species list!

Where Does It Call Home?

Eggers’ milkpea is native exclusively to the U.S. Virgin Islands, making it what’s called an endemic species. This means you won’t find it growing naturally anywhere else in the world – not in Florida, not in Puerto Rico, nowhere but those specific Caribbean islands.

Should You Try to Grow Eggers’ Milkpea?

The short answer is: please don’t. Unless you’re working directly with conservation organizations or botanical institutions, attempting to grow this plant could actually harm conservation efforts. Here’s why:

  • The plant is so rare that removing any from the wild could push it closer to extinction
  • There’s virtually no information available about its specific growing requirements
  • Seeds or plants offered for sale are unlikely to be legitimate or legally obtained
  • Conservation efforts need to focus on protecting existing populations first

What We Don’t Know (And Why That Matters)

The reality is that Eggers’ milkpea is so rare and understudied that we lack basic information about how to grow it successfully. We don’t know its preferred soil conditions, water requirements, or even what it looks like in different seasons. This knowledge gap exists precisely because the plant is too rare to study extensively without risking damage to wild populations.

How You Can Help Instead

Rather than trying to grow this endangered species, here are meaningful ways to support its conservation:

  • Support botanical gardens and conservation organizations working in the Caribbean
  • Choose other native Caribbean plants for your garden if you live in a similar climate
  • Spread awareness about plant conservation and the importance of endemic species
  • If you’re a researcher or work with a legitimate botanical institution, consider contributing to conservation efforts

The Bigger Picture

Eggers’ milkpea represents something important: the incredible diversity of plant life that exists in small, isolated places around the world. The Virgin Islands, despite their small size, host numerous endemic species that exist nowhere else on Earth. When we lose plants like this, we lose them forever.

While you might not be able to grow Eggers’ milkpea in your backyard, you can appreciate it for what it represents – the amazing ability of life to adapt to specific places and conditions. And sometimes, the best way to love a plant is to leave it exactly where it belongs: safe in its native habitat, protected for future generations to discover and study.

So next time someone asks you about the rarest plant you know, you can tell them about Eggers’ milkpea – the little Caribbean herb that’s too precious to pick.

Eggers’ Milkpea

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

Galactia P. Br. - milkpea

Species

Galactia eggersii Urb. - Eggers' milkpea

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