North America Non-native Plant

Pseudanamomis

Botanical name: Pseudanamomis

USDA symbol: PSEUD12

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in Puerto Rico  

Pseudanamomis: An Uncommon Shrub for Tropical Gardens If you’re looking for something truly unique in your tropical garden, you might have stumbled upon Pseudanamomis—a perennial shrub that’s as mysterious as its name suggests. While not exactly a household name in the gardening world, this interesting plant has found its way ...

Pseudanamomis: An Uncommon Shrub for Tropical Gardens

If you’re looking for something truly unique in your tropical garden, you might have stumbled upon Pseudanamomis—a perennial shrub that’s as mysterious as its name suggests. While not exactly a household name in the gardening world, this interesting plant has found its way into Puerto Rican landscapes, where it has established itself as a naturalized species.

What Is Pseudanamomis?

Pseudanamomis is a perennial shrub that typically grows as a multi-stemmed woody plant. Like most shrubs, it usually stays under 13-16 feet tall, though it can occasionally stretch taller or develop a single stem depending on growing conditions. Think of it as nature’s way of filling the middle layer of your landscape—not quite a tree, but definitely more substantial than your average perennial flower.

Where Does It Come From?

Here’s where things get interesting: Pseudanamomis isn’t actually native to Puerto Rico, where it currently grows. It’s what botanists call an introduced species—meaning it arrived from somewhere else but has made itself quite at home. The plant now reproduces on its own in the wild without any human help, showing just how well it’s adapted to the Puerto Rican climate.

Should You Plant Pseudanamomis?

The decision to plant Pseudanamomis comes with some considerations. Since it’s not native to Puerto Rico (and information about its true native range is limited), you might want to think twice before adding it to your landscape. While it’s not currently listed as invasive, non-native plants can sometimes become problematic over time.

If you’re drawn to the idea of growing Pseudanamomis, consider these factors:

  • Limited information is available about its growing requirements and potential impacts
  • As a non-native species, it may not provide the same ecological benefits as native plants
  • Native alternatives might be better choices for supporting local wildlife

Native Alternatives to Consider

Instead of Pseudanamomis, consider exploring Puerto Rico’s rich native flora. Native plants are typically better adapted to local conditions, require less maintenance once established, and provide crucial habitat and food sources for native wildlife, including pollinators and birds.

Some excellent native Puerto Rican shrubs to consider include species from genera like Cordia, Erithalis, or Psychotria—plants that have evolved alongside the island’s unique ecosystem and will truly make your garden a haven for local wildlife.

If You Choose to Grow Pseudanamomis

Should you decide to proceed with Pseudanamomis despite the limited information available, here’s what we know:

  • It’s a perennial shrub, so expect it to stick around year after year
  • As an established species in Puerto Rico, it likely tolerates the local climate well
  • Like most shrubs, it probably prefers well-draining soil
  • Regular watering during establishment would be wise

However, given the lack of detailed growing information, you’d essentially be experimenting. Start small, observe how it performs, and be prepared to remove it if it shows signs of spreading aggressively.

The Bottom Line

Pseudanamomis remains something of an enigma in the plant world. While it’s successfully established itself in Puerto Rico, the limited information about this shrub makes it a risky choice for most gardeners. Your garden—and your local ecosystem—would likely benefit more from choosing well-researched native plants that are known to thrive in your specific conditions while supporting the wildlife that calls your area home.

Sometimes the most responsible gardening choice is to admire an unusual plant from afar while choosing better-understood alternatives for your own landscape.

Pseudanamomis

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

Pseudanamomis Kausel - pseudanamomis

Species

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