North America Native Plant

St. Thomas Lidpod

Botanical name: Operculina turpethum var. turpethum

USDA symbol: OPTUT2

Life cycle: perennial

Habit: vine

Native status: Native to the U.S. Virgin Islands  

Synonyms: Ipomoea triquetra (Vahl) Roem. & Schult. (IPTR7)  âš˜  Ipomoea turpethum (L.) R. Br. (IPTU6)  âš˜  Operculina triquetra (Vahl) Hallier f. (OPTR2)   

St. Thomas Lidpod: A Rare Caribbean Climbing Vine Worth Knowing Meet the St. Thomas lidpod (Operculina turpethum var. turpethum), a fascinating climbing vine that calls the U.S. Virgin Islands home. This perennial member of the morning glory family might not be on every gardener’s radar, but it’s certainly worth understanding, ...

Rare plant alert!

Region: Conservation status by state

Status: SNRT1: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Subnational conservation status not yet assessed. ⚘

St. Thomas Lidpod: A Rare Caribbean Climbing Vine Worth Knowing

Meet the St. Thomas lidpod (Operculina turpethum var. turpethum), a fascinating climbing vine that calls the U.S. Virgin Islands home. This perennial member of the morning glory family might not be on every gardener’s radar, but it’s certainly worth understanding, especially if you’re passionate about rare native plants or live in tropical regions.

What Makes St. Thomas Lidpod Special?

The St. Thomas lidpod is a twining and climbing plant that develops relatively long stems, which can be either woody or herbaceous depending on growing conditions. As a perennial, it returns year after year, making it a potentially valuable long-term addition to the right garden setting.

This plant belongs to the Convolvulaceae family, sharing kinship with familiar morning glories and sweet potatoes. You might also encounter it referenced by several botanical synonyms, including Ipomoea triquetra and Ipomoea turpethum, reflecting its taxonomic journey through scientific classification.

Where Does It Come From?

The St. Thomas lidpod is native exclusively to the U.S. Virgin Islands, making it a true Caribbean endemic. This extremely limited natural range makes it a special plant for those interested in regional flora and authentic tropical gardening.

The Rarity Factor: What You Need to Know

Here’s where things get serious: the St. Thomas lidpod carries a Global Conservation Status of SNRT1, indicating it’s a plant of conservation concern. While the exact definition of this status isn’t clear from available data, any plant with a conservation ranking deserves our attention and respect.

If you’re considering growing this species, it’s crucial to source it responsibly. This means:

  • Never collect from wild populations
  • Only purchase from reputable nurseries that propagate plants ethically
  • Consider participating in conservation efforts if you successfully grow it
  • Share seeds or cuttings with other conservation-minded gardeners

Should You Grow St. Thomas Lidpod?

The decision to grow St. Thomas lidpod depends on several factors. On the positive side, you’d be cultivating a rare native plant and potentially contributing to its conservation. Its climbing habit could make it useful for covering structures, creating privacy screens, or adding vertical interest to tropical gardens.

However, the challenges are significant. With such limited natural range and conservation concerns, finding plants or seeds may be extremely difficult. Additionally, without detailed growing condition information readily available, cultivation could prove challenging for most gardeners.

Growing Conditions and Care

Unfortunately, specific growing requirements for St. Thomas lidpod aren’t well-documented in readily available sources. However, given its Virgin Islands origins, we can make some educated assumptions:

  • Likely thrives in warm, tropical to subtropical climates
  • Probably prefers well-draining soil typical of Caribbean environments
  • May need support structures for its climbing habit
  • Likely requires protection from cold temperatures

If you’re fortunate enough to obtain this plant, observe it carefully and adjust care based on its responses. Connect with botanical gardens or conservation organizations that might have experience growing it.

The Bottom Line

St. Thomas lidpod represents the kind of plant that reminds us why botanical diversity matters. While it may not be practical for most home gardens due to availability and conservation concerns, it’s worth knowing about and supporting if you have the opportunity.

For most gardeners interested in similar climbing vines, consider exploring other native Convolvulaceae species appropriate to your region. You’ll get the satisfaction of growing native plants while leaving rare species like St. Thomas lidpod to conservation specialists and serious collectors who can contribute to its preservation.

Sometimes the most responsible gardening choice is appreciation from afar, ensuring these remarkable plants continue to thrive in their natural habitats for future generations to discover and protect.

St. Thomas Lidpod

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

Solanales

Family

Convolvulaceae Juss. - Morning-glory family

Genus

Operculina Silva Manso - lidpod

Species

Operculina turpethum (L.) Silva Manso - St. Thomas lidpod

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