Native Plants

Britton’s Centaury

Centaurium quitense

USDA symbol: CEQU

annual forb

U.S. Virgin Islands: native

If you’re a gardener in the Caribbean region, particularly the U.S. Virgin Islands, you might want to get acquainted with Britton’s centaury (Centaurium quitense). This unassuming little annual is one of your area’s truly native plants – and in a world where so many of our garden favorites come from ...

Britton’s Centaury: A Lesser-Known Native Gem of the Virgin Islands

If you’re a gardener in the Caribbean region, particularly the U.S. Virgin Islands, you might want to get acquainted with Britton’s centaury (Centaurium quitense). This unassuming little annual is one of your area’s truly native plants – and in a world where so many of our garden favorites come from far-off places, that’s worth celebrating!

What Is Britton’s Centaury?

Britton’s centaury is a native annual forb that belongs to the gentian family. As a forb, it’s essentially a non-woody flowering plant – think of it as the botanical equivalent of a friendly neighbor who doesn’t take up too much space but adds something special to the community. You might also see this plant listed under its scientific synonyms, including Centaurium brittonii or Erythraea quitensis, if you’re diving into botanical references.

Where Does It Call Home?

This little plant is a true Caribbean native, specifically calling the U.S. Virgin Islands home. Its distribution is quite limited – you won’t find wild populations of Britton’s centaury growing naturally anywhere else in the world. This makes it a special piece of the Virgin Islands’ natural heritage.

  • Species observed
  • No observations

The Garden Reality Check

Here’s where we need to have an honest conversation: while Britton’s centaury is undoubtedly interesting from a native plant perspective, information about growing it in gardens is surprisingly scarce. This isn’t uncommon with highly localized native species that haven’t made their way into mainstream horticulture.

What We Do Know

Based on available information, here’s what we can tell you about Britton’s centaury:

  • Plant type: Annual forb (completes its life cycle in one year)
  • Growth habit: Non-woody flowering plant
  • Wetland preference: Usually found in non-wetland areas but can tolerate some wetland conditions
  • Native status: Indigenous to the U.S. Virgin Islands

Should You Grow It?

If you’re gardening in the Virgin Islands and are passionate about supporting native plant species, Britton’s centaury could be worth seeking out – though finding seeds or plants might prove challenging. As a native annual, it would theoretically fit well into naturalized areas or wildflower gardens that celebrate local flora.

However, the lack of readily available growing information means you’d be somewhat pioneering if you choose to cultivate this species. Sometimes the most rewarding gardening experiences come from working with these lesser-known natives, but it does require patience and experimentation.

The Bottom Line

Britton’s centaury represents the kind of plant that makes regional biodiversity so fascinating – a species perfectly adapted to its specific corner of the world. While it may not be the easiest plant to incorporate into your garden, its status as a true Virgin Islands native gives it special significance for local gardeners interested in preserving and celebrating their natural heritage.

If you’re determined to work with this species, your best bet would be connecting with local botanical institutions, native plant societies, or conservation organizations in the Virgin Islands who might have more specific knowledge about its cultivation requirements.

Centaurium quitense is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Centaurium quitense is also known as:

Centaurium brittonii & | USDA symbol: CEBR4
Erythraea quitensis | USDA symbol: ERQU3
Zeltnera quitensis | USDA symbol: ZEQU

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Caribbean (PR, VI)

Facultative Upland
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Gentianales
Family: Gentianaceae Juss. - Gentian family
Genus: Centaurium Hill - centaury

Species: Centaurium quitense (Kunth) B.L. Rob. - Britton's centaury

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