North America Native Plant

Zarzabacoa Comun

Botanical name: Desmodium incanum var. angustifolium

USDA symbol: DEINA

Life cycle: perennial

Habit: subshrub

Native status: Native to Puerto Rico  

Synonyms: Desmodium canum (J.F. Gmel.) Schinz & Thell. var. angustifolium (Griseb.) Léon & Alain (DECAA)   

Zarzabacoa Comun: A Native Puerto Rican Perennial Worth Knowing If you’re gardening in Puerto Rico and looking to embrace native plants, you might want to get acquainted with zarzabacoa comun (Desmodium incanum var. angustifolium). This perennial herb represents the kind of indigenous flora that once dominated the island’s landscapes, though ...

Zarzabacoa Comun: A Native Puerto Rican Perennial Worth Knowing

If you’re gardening in Puerto Rico and looking to embrace native plants, you might want to get acquainted with zarzabacoa comun (Desmodium incanum var. angustifolium). This perennial herb represents the kind of indigenous flora that once dominated the island’s landscapes, though it remains somewhat of a mystery in modern gardening circles.

What Exactly is Zarzabacoa Comun?

Zarzabacoa comun is a native Puerto Rican perennial that falls into the category of forb herbs. Think of it as a non-woody plant that comes back year after year, without the thick, sturdy stems you’d find on shrubs or trees. Instead, it’s got that soft, herbaceous quality that makes it flexible and approachable in garden settings.

This plant belongs to the legume family, and like many of its relatives, it likely plays an interesting role in soil health through nitrogen fixation, though specific details about this variety remain elusive in horticultural literature.

Where Does It Call Home?

This variety of Desmodium is exclusively native to Puerto Rico, making it a true island endemic. You won’t find this particular plant naturally occurring anywhere else in the world, which makes it pretty special if you’re into botanical uniqueness.

Should You Plant It in Your Garden?

Here’s where things get interesting – and a bit challenging. While zarzabacoa comun has the appeal of being a native Puerto Rican plant (which is always a plus for supporting local ecosystems), there’s surprisingly little information available about its specific growing requirements, appearance, or garden performance.

The benefits of choosing this native plant include:

  • Supporting indigenous Puerto Rican flora
  • Likely adapted to local climate conditions
  • Perennial nature means it comes back year after year
  • Potential soil benefits as a legume family member

However, the lack of readily available growing information means you’d be somewhat pioneering if you choose to cultivate it.

The Growing Challenge

Unfortunately, specific growing conditions, care requirements, and propagation methods for zarzabacoa comun aren’t well-documented in accessible horticultural sources. This isn’t uncommon for native plants that haven’t made their way into mainstream gardening – sometimes the most interesting plants are the ones waiting to be rediscovered.

If you’re determined to grow this native gem, you might need to:

  • Contact local botanical gardens or native plant societies in Puerto Rico
  • Observe the plant in its natural habitat to understand its preferences
  • Start with small trials to learn its needs through experience

A Plant Worth Investigating

While we can’t provide a complete growing guide for zarzabacoa comun, its status as a Puerto Rican endemic makes it botanically significant. If you’re passionate about native plants and enjoy the challenge of working with lesser-known species, this could be an exciting addition to your garden – assuming you can source it responsibly and learn its needs along the way.

For gardeners seeking well-documented native Puerto Rican alternatives, consider researching other indigenous perennials with more established cultivation information while keeping zarzabacoa comun on your plants to investigate list.

Zarzabacoa Comun

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

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Desmodium Desv. - ticktrefoil

Species

Desmodium incanum DC. - zarzabacoa comun

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