North America Native Plant

Margarett’s Myrcia

Botanical name: Myrcia margarettiae

USDA symbol: MYMA4

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Synonyms: Eugenia margarettiae Alain (EUMA11)  âš˜  Myrcia margarettae (Alain) Alain, orth. var. (MYMA9)   

Margarett’s Myrcia: A Critically Endangered Wetland Treasure If you’ve stumbled upon information about Margarett’s myrcia (Myrcia margarettiae), you’ve discovered one of Puerto Rico’s most precious and precarious native plants. This isn’t your typical garden center find – in fact, it’s quite the opposite. Let’s dive into why this remarkable shrub ...

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) ⚘

Margarett’s Myrcia: A Critically Endangered Wetland Treasure

If you’ve stumbled upon information about Margarett’s myrcia (Myrcia margarettiae), you’ve discovered one of Puerto Rico’s most precious and precarious native plants. This isn’t your typical garden center find – in fact, it’s quite the opposite. Let’s dive into why this remarkable shrub deserves our attention, respect, and protection.

What Is Margarett’s Myrcia?

Margarett’s myrcia is a perennial shrub native exclusively to Puerto Rico. Like other shrubs, it’s a multi-stemmed woody plant that typically grows less than 13 to 16 feet tall, with several stems arising from or near the ground. You might also see it listed under its scientific synonyms, including Eugenia margarettiae or the variant spelling Myrcia margarettae.

A Plant on the Brink

Here’s where things get serious: Margarett’s myrcia carries a Global Conservation Status of S1, meaning it’s critically imperiled. In plain terms, this plant is hanging on by a thread. With typically five or fewer known occurrences and fewer than 1,000 individuals remaining in the wild, every single plant matters enormously.

Where It Calls Home

This rare beauty is found only in Puerto Rico, where it has adapted to very specific conditions. As an obligate wetland species in the Caribbean region, Margarett’s myrcia almost always occurs in wetland environments – it’s not just adapted to soggy conditions, it absolutely requires them.

Why You Shouldn’t Plant It (And What to Do Instead)

While the conservation-minded gardener in you might want to help this species by growing it, here’s the reality check: Margarett’s myrcia isn’t suitable for home cultivation, and attempting to grow it could actually harm conservation efforts. Here’s why:

  • Its extreme rarity means any plants available would need to come from wild populations or legitimate conservation programs
  • As an obligate wetland species, it has very specific habitat requirements that are difficult to replicate in typical gardens
  • Removing plants from wild populations (even with good intentions) could push this species closer to extinction

Supporting Conservation Instead

Rather than trying to grow Margarett’s myrcia yourself, here are meaningful ways to help:

  • Support Puerto Rican botanical gardens and conservation organizations working to protect native wetland habitats
  • Choose other native Puerto Rican plants for your garden that aren’t critically imperiled
  • If you’re in Puerto Rico, consider volunteering with wetland restoration projects
  • Spread awareness about the importance of protecting rare native species

The Bigger Picture

Margarett’s myrcia serves as a powerful reminder of how precious and fragile our native plant heritage can be. While we can’t invite this particular species into our gardens, we can honor its existence by making thoughtful choices about the plants we do grow and by supporting the habitats where rare species like this one struggle to survive.

Every rare plant tells a story about the intricate web of life in its native ecosystem. Margarett’s myrcia’s story is still being written, and with proper conservation efforts, hopefully it won’t end in extinction. Sometimes the best way to love a plant is to admire it from afar and work to protect the wild places where it belongs.

Margarett’s Myrcia

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

Myrtales

Family

Myrtaceae Juss. - Myrtle family

Genus

Myrcia DC. ex Guill. - rodwood

Species

Myrcia margarettiae (Alain) Alain - Margarett's myrcia

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