North America Native Plant

Caribbean Chinchweed

Botanical name: Pectis carthusianorum

USDA symbol: PECA18

Life cycle: annual

Habit: forb

Native status: Native to Puerto Rico  

Caribbean Chinchweed: A Lesser-Known Puerto Rican Native Worth Discovering If you’re passionate about native gardening and happen to call Puerto Rico home, you might want to get acquainted with Caribbean chinchweed (Pectis carthusianorum). This modest annual herb represents one of the island’s authentic botanical treasures, though it’s certainly not your ...

Caribbean Chinchweed: A Lesser-Known Puerto Rican Native Worth Discovering

If you’re passionate about native gardening and happen to call Puerto Rico home, you might want to get acquainted with Caribbean chinchweed (Pectis carthusianorum). This modest annual herb represents one of the island’s authentic botanical treasures, though it’s certainly not your typical garden center find.

What Exactly Is Caribbean Chinchweed?

Caribbean chinchweed belongs to the vast Asteraceae family – think daisies, sunflowers, and their countless cousins. As an annual forb, this herbaceous plant completes its entire life cycle in just one growing season, making it a fleeting but authentic addition to Puerto Rican landscapes. Unlike woody shrubs or trees, forbs like Caribbean chinchweed lack significant woody tissue and rely on underground buds to survive challenging conditions.

Where Does It Call Home?

This plant is exclusively native to Puerto Rico, making it a true endemic species of the island. You won’t find Caribbean chinchweed naturally occurring anywhere else in the world, which makes it particularly special for local gardeners interested in preserving their region’s unique botanical heritage.

Should You Grow Caribbean Chinchweed?

Here’s where things get a bit tricky. While Caribbean chinchweed deserves recognition as a legitimate native plant, practical information about growing it successfully is surprisingly scarce. This creates both an opportunity and a challenge for native plant enthusiasts.

The Pros:

  • Authentic Puerto Rican native species
  • Supports local ecosystem integrity
  • Annual growth habit means low long-term commitment
  • Part of the island’s natural botanical diversity

The Challenges:

  • Very limited availability in cultivation
  • Scarce growing information and care guidelines
  • Seeds or plants difficult to source responsibly
  • Unknown ornamental value or garden performance

Growing Conditions and Care

Unfortunately, specific growing requirements for Caribbean chinchweed aren’t well-documented in horticultural literature. As a Puerto Rican native, it likely thrives in tropical conditions with warm temperatures year-round. Most plants in the Asteraceae family prefer well-draining soils and at least partial sunlight, but without specific research on this species, gardeners would need to experiment carefully.

Since it’s an annual, Caribbean chinchweed would need to be replanted each year or allowed to self-seed if conditions are favorable. The plant’s natural habitat preferences, soil requirements, and water needs remain largely undocumented for cultivation purposes.

A Plant for the Adventurous Native Gardener

Caribbean chinchweed represents the type of plant that appeals to serious native plant enthusiasts rather than casual gardeners. If you’re interested in this species, consider connecting with local botanical organizations, universities, or native plant societies in Puerto Rico who might have more information about responsible propagation and cultivation.

For gardeners seeking more readily available Puerto Rican natives with known growing requirements, consider researching other endemic species with better-documented cultivation needs. The goal of native gardening is to support local ecosystems while creating beautiful, sustainable landscapes.

The Bottom Line

Caribbean chinchweed deserves respect as a genuine Puerto Rican native, but it’s definitely not a beginner’s plant. The lack of cultivation information makes it more suitable for experienced native plant enthusiasts willing to experiment and potentially contribute to our understanding of this lesser-known species. If you do encounter this plant or seeds from responsible sources, approach it as an opportunity to learn rather than a guaranteed garden success.

Sometimes the most interesting native plants are the ones that keep a few secrets, and Caribbean chinchweed certainly fits that description perfectly.

Caribbean 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 carthusianorum Less. - Caribbean chinchweed

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