North America Native Plant

Ceboruquillo

Botanical name: Thouinia striata

USDA symbol: THST2

Life cycle: perennial

Habit: shrub

Native status: Native to Puerto Rico  

Ceboruquillo: A Rare Puerto Rican Native Worth Protecting If you’re passionate about native plants and conservation, you may have come across the name ceboruquillo, scientifically known as Thouinia striata. This lesser-known Puerto Rican native deserves attention not just for its rarity, but for what it represents in terms of island ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: 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 ⚘

Ceboruquillo: A Rare Puerto Rican Native Worth Protecting

If you’re passionate about native plants and conservation, you may have come across the name ceboruquillo, scientifically known as Thouinia striata. This lesser-known Puerto Rican native deserves attention not just for its rarity, but for what it represents in terms of island biodiversity and conservation efforts.

What is Ceboruquillo?

Ceboruquillo is a perennial shrub that’s exclusively native to Puerto Rico. Like many shrubs, it’s a multi-stemmed woody plant that typically grows less than 13 to 16 feet in height, with several stems arising from or near the ground. This growth habit makes it potentially useful as a landscape specimen, though its applications remain largely unstudied.

Where Does It Grow?

This unique plant species is found only in Puerto Rico, making it what botanists call an endemic species. Its limited geographic range is part of what makes it so special – and so vulnerable.

Conservation Concerns: Why This Plant Needs Our Help

Here’s where things get serious. Ceboruquillo has a Global Conservation Status of S3, which translates to Vulnerable. This means it’s at risk due to its rarity and limited distribution. With typically only 21 to 100 occurrences or between 3,000 and 10,000 individuals in the wild, every plant matters.

This vulnerable status puts ceboruquillo in a precarious position where habitat loss, climate change, or other environmental pressures could quickly push it toward a more critical conservation status.

Should You Grow Ceboruquillo?

If you’re considering adding this native Puerto Rican shrub to your garden, here’s what you need to know:

The responsible approach: Yes, you can consider growing ceboruquillo, but only – and we cannot stress this enough – only with responsibly sourced material. This means:

  • Never collect plants from the wild
  • Source only from reputable native plant nurseries
  • Ensure any plants come from ethical propagation programs
  • Consider participating in conservation efforts rather than just ornamental growing

Growing Challenges and Unknowns

Here’s where we hit a roadblock: specific growing information for ceboruquillo is remarkably scarce. We know it’s a shrub that’s adapted to Puerto Rican conditions, but details about soil preferences, water needs, sun requirements, and care instructions aren’t well documented in readily available sources.

This lack of cultivation information actually highlights why this plant needs more attention from researchers and conservationists. If you’re in Puerto Rico or a similar climate zone (likely USDA zones 10-11), working with local botanists or native plant societies might be your best bet for growing guidance.

The Bigger Picture

Ceboruquillo represents something larger than just another native plant option. It’s a reminder of the incredible diversity that exists in small places like Puerto Rico, and how easily we can lose species that we barely understand.

Rather than focusing solely on whether you can grow this plant in your garden, consider how you might support its conservation. This could mean:

  • Supporting organizations working on Puerto Rican plant conservation
  • Choosing other well-documented Puerto Rican natives for your garden
  • Spreading awareness about rare native plants
  • Contributing to botanical research and documentation efforts

The Bottom Line

Ceboruquillo is a fascinating example of Puerto Rico’s unique flora, but it’s also a plant that needs our protection more than our cultivation. If you do choose to grow it, make absolutely certain you’re doing so responsibly and ethically. Better yet, consider it a gateway to learning about and supporting the conservation of Puerto Rico’s remarkable native plant diversity.

Sometimes the most meaningful way to appreciate a rare plant isn’t by growing it in our gardens, but by ensuring it continues to thrive in its native habitat for future generations to discover and study.

Ceboruquillo

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

Sapindales

Family

Sapindaceae Juss. - Soapberry family

Genus

Thouinia Poit. - thouinia

Species

Thouinia striata Radlk. - ceboruquillo

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