North America Native Plant

False Tamarisk

Botanical name: Myrciaria borinquena

USDA symbol: MYBO

Life cycle: perennial

Habit: tree

Native status: Native to Puerto Rico  

False Tamarisk: A Mysterious Puerto Rican Native Tree Worth Knowing About Meet Myrciaria borinquena, commonly known as false tamarisk – a fascinating tree species that calls Puerto Rico home. While this native beauty might not be gracing your local nursery shelves anytime soon, it’s worth getting to know this intriguing ...

False Tamarisk: A Mysterious Puerto Rican Native Tree Worth Knowing About

Meet Myrciaria borinquena, commonly known as false tamarisk – a fascinating tree species that calls Puerto Rico home. While this native beauty might not be gracing your local nursery shelves anytime soon, it’s worth getting to know this intriguing member of the myrtle family (Myrtaceae).

Where Does False Tamarisk Come From?

False tamarisk is exclusively native to Puerto Rico, making it a true island endemic. This means you won’t find it growing naturally anywhere else in the world – talk about being special! The tree has evolved specifically to thrive in Puerto Rico’s unique climate and conditions.

What Does This Tree Look Like?

As a perennial tree, false tamarisk typically grows as a single-trunked specimen reaching heights of 13 to 16 feet or more. Like many tropical trees, it can sometimes develop multiple stems or stay shorter than expected depending on environmental conditions – nature always keeps us guessing!

Should You Plant False Tamarisk?

Here’s where things get a bit tricky. While false tamarisk would theoretically be an excellent choice for Puerto Rican gardeners wanting to support native biodiversity, this species appears to be quite rare and understudied. Limited information is available about its cultivation requirements, availability, or conservation status.

The Responsible Approach

If you’re lucky enough to encounter false tamarisk or have the opportunity to grow it, here are some important considerations:

  • Only source plants from reputable, conservation-minded nurseries
  • Never collect from wild populations
  • Consider this tree as part of broader native plant conservation efforts
  • Connect with local botanical gardens or conservation organizations for guidance

Growing Conditions and Care

Since false tamarisk is native to Puerto Rico, it’s naturally adapted to tropical conditions. However, specific growing requirements, preferred soil types, water needs, and care instructions aren’t well-documented. If you’re considering this tree for your landscape, you’ll want to:

  • Consult with local horticulturists familiar with Puerto Rican native plants
  • Provide conditions similar to other native Puerto Rican trees
  • Expect it to prefer warm, humid conditions year-round

The Bigger Picture

False tamarisk represents something important in the gardening world – the value of preserving and understanding our native plant heritage. Even if this particular species isn’t readily available for home gardening, learning about it helps us appreciate the incredible diversity of plants that call different regions home.

For Puerto Rican gardeners interested in native plants, consider exploring other well-documented native species while keeping an eye out for conservation efforts involving rare endemics like false tamarisk. Sometimes the most valuable plants are the ones we protect rather than the ones we plant.

A Tree Worth Protecting

While we may not have all the answers about growing false tamarisk in our gardens, we can certainly appreciate its role as a unique piece of Puerto Rico’s natural heritage. Supporting native plant research and conservation efforts helps ensure that future generations might have better opportunities to grow and enjoy remarkable species like this one.

False Tamarisk

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

Myrciaria Berg - guavaberry

Species

Myrciaria borinquena Alain - false tamarisk

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