North America Native Plant

Tropical Chinchweed

Botanical name: Pectis elongata

USDA symbol: PEEL6

Life cycle: annual

Habit: subshrub

Native status: Native to Puerto Rico  

Tropical Chinchweed: A Lesser-Known Native of Puerto Rico If you’re passionate about native gardening in tropical climates, you might have stumbled across the name tropical chinchweed (Pectis elongata). This little-known native plant calls Puerto Rico home, but don’t expect to find it at your local garden center just yet. Let’s ...

Tropical Chinchweed: A Lesser-Known Native of Puerto Rico

If you’re passionate about native gardening in tropical climates, you might have stumbled across the name tropical chinchweed (Pectis elongata). This little-known native plant calls Puerto Rico home, but don’t expect to find it at your local garden center just yet. Let’s dive into what we know about this intriguing species and whether it might have a place in your garden.

What Is Tropical Chinchweed?

Tropical chinchweed is a native forb that can behave as either an annual or perennial plant. As a member of the herb family, it lacks the woody tissue you’d find in shrubs or trees, instead maintaining a more delicate, herbaceous structure. Like other forbs, it keeps its growing buds at or below ground level, helping it survive through different seasons.

Where Does It Grow Naturally?

This plant is exclusively native to Puerto Rico, making it a true island endemic. You won’t find wild populations anywhere else in the world, which gives it special significance for Puerto Rican native plant enthusiasts and conservation efforts.

Should You Grow Tropical Chinchweed?

Here’s where things get a bit tricky. While tropical chinchweed sounds like it could be an interesting addition to a native Puerto Rican garden, there’s surprisingly little information available about its horticultural uses, growing requirements, or even its appearance in garden settings.

If you’re gardening in Puerto Rico and are committed to using only native species, tropical chinchweed could theoretically be a candidate for your landscape. However, the lack of readily available information suggests it’s either quite rare, not commonly cultivated, or both.

Growing Conditions and Care

Unfortunately, specific growing requirements for tropical chinchweed aren’t well-documented in horticultural literature. Based on its native habitat in Puerto Rico, we can make some educated guesses:

  • Likely thrives in warm, tropical conditions year-round
  • Probably suited to USDA hardiness zones 10-11
  • May prefer the humidity and rainfall patterns typical of Puerto Rico
  • As a forb, it likely prefers well-draining soil

The Reality Check

While it’s always exciting to learn about native plants, tropical chinchweed presents a challenge for most gardeners. The scarcity of cultivation information suggests it may not be readily available through typical plant sources. If you’re interested in this species, you might need to connect with native plant societies in Puerto Rico or botanical institutions that specialize in Caribbean flora.

Alternative Native Options

If you’re drawn to the idea of growing Puerto Rican natives but can’t locate tropical chinchweed, consider exploring other native species that are better documented and more readily available. Local native plant societies and botanical gardens in Puerto Rico can be excellent resources for finding cultivated native alternatives that will thrive in your garden while supporting local ecosystems.

The Bottom Line

Tropical chinchweed represents the fascinating diversity of Puerto Rico’s native flora, but it’s not a plant you can simply order online or pick up at the nursery. If you do encounter it or find a source for seeds or plants, approach it as you would any rare native species—with respect, proper research, and ideally, guidance from local native plant experts.

Sometimes the most interesting plants are the ones that remind us there’s still so much to discover and learn about our native flora. Tropical chinchweed might just be one of those hidden gems waiting for the right gardener to unlock its secrets.

Tropical Chinchweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Pectis L. - chinchweed

Species

Pectis elongata Kunth - tropical chinchweed

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