North America Native Plant

Pincho Palo De Rosa

Botanical name: Ottoschulzia rhodoxylon

USDA symbol: OTRH

Life cycle: perennial

Habit: tree

Native status: Native to Puerto Rico  

Pincho Palo de Rosa: A Critically Endangered Puerto Rican Tree Worth Protecting Meet Ottoschulzia rhodoxylon, known locally as pincho palo de rosa – a mysterious and critically endangered tree species that calls Puerto Rico home. This remarkable native plant represents one of the island’s most precious botanical treasures, though sadly, ...

Rare plant alert!

Region: United States

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Pincho Palo de Rosa: A Critically Endangered Puerto Rican Tree Worth Protecting

Meet Ottoschulzia rhodoxylon, known locally as pincho palo de rosa – a mysterious and critically endangered tree species that calls Puerto Rico home. This remarkable native plant represents one of the island’s most precious botanical treasures, though sadly, it’s also one of its most threatened.

What Makes This Tree Special?

Pincho palo de rosa is a perennial tree species that typically grows as a single-stemmed woody plant, reaching heights greater than 13-16 feet under normal conditions. Like many tropical trees, it may occasionally develop multiple stems or remain shorter depending on environmental pressures.

This species is endemic to Puerto Rico, meaning it exists nowhere else on Earth. Unfortunately, that exclusivity comes with a heavy price – extreme rarity.

Geographic Distribution

Ottoschulzia rhodoxylon is found only in Puerto Rico, where it clings to existence in what are likely very specific and limited habitats across the island.

A Conservation Crisis

Here’s where things get serious, fellow plant lovers. Pincho palo de rosa carries some sobering conservation classifications:

  • Global Conservation Status: S2 (Imperiled)
  • US Rarity Status: Endangered
  • Population: Typically only 6-20 occurrences remain, with an estimated 1,000-3,000 individual plants left in the wild

These numbers paint a stark picture – this tree is teetering on the brink of extinction, making it extremely vulnerable to complete disappearance from our planet.

Should You Try Growing Pincho Palo de Rosa?

Here’s our honest recommendation: probably not. While we’re usually enthusiastic about encouraging native plant gardening, pincho palo de rosa presents a unique situation that requires extreme caution.

Given its endangered status and the lack of documented cultivation information, attempting to grow this species could potentially:

  • Harm wild populations if seeds or plants are collected inappropriately
  • Fail entirely due to unknown specific habitat requirements
  • Divert conservation resources from professional efforts

How You Can Help Instead

Rather than trying to grow pincho palo de rosa yourself, consider these meaningful alternatives:

  • Support conservation organizations working to protect Puerto Rican endemic species
  • Plant other native Puerto Rican trees that are more stable and well-documented
  • Advocate for habitat protection in areas where this species might still exist
  • Spread awareness about the importance of island endemic species

The Bigger Picture

Pincho palo de rosa represents something larger than just one tree species – it’s a symbol of the incredible biodiversity that islands like Puerto Rico harbor, and the fragility of that diversity in the face of human activity and climate change.

While we can’t provide growing tips for this endangered beauty, we can appreciate its existence and work to ensure future generations might have the chance to see pincho palo de rosa thriving in Puerto Rico’s forests once again.

Sometimes the best way to love a plant is to let the experts handle its care while we focus our gardening energy on species that can truly benefit from our attention. In this case, that means choosing other native Puerto Rican plants that can bring beauty to our landscapes while supporting local ecosystems – without putting critically endangered species at risk.

Pincho Palo De Rosa

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

Celastrales

Family

Icacinaceae Miers - Icacina family

Genus

Ottoschulzia Urb. - ottoschulzia

Species

Ottoschulzia rhodoxylon (Urb.) Urb. - pincho palo de rosa

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