Native Plants

Jost Van Dyke’s Indian Mallow

Bastardiopsis eggersii

USDA symbol: BAEG6

perennial tree

Puerto Rico: native
U.S. Virgin Islands: native

If you’ve stumbled upon information about Jost Van Dyke’s Indian mallow (Bastardiopsis eggersii), you’ve discovered one of the Caribbean’s most precious and imperiled native plants. This isn’t your typical gardening recommendation – it’s more of a conservation story that every plant lover should know about. Jost Van Dyke’s Indian mallow, ...

Jost Van Dyke’s Indian Mallow may be listed as rare in your area.
Global Conservation Status

Status: S1 | Critically imperiled: Typically 5 or fewer occurrences or under 1,000 remaining individuals.

Jost Van Dyke’s Indian Mallow: A Critically Rare Caribbean Native Worth Protecting

If you’ve stumbled upon information about Jost Van Dyke’s Indian mallow (Bastardiopsis eggersii), you’ve discovered one of the Caribbean’s most precious and imperiled native plants. This isn’t your typical gardening recommendation – it’s more of a conservation story that every plant lover should know about.

What Is Jost Van Dyke’s Indian Mallow?

Jost Van Dyke’s Indian mallow, scientifically known as Bastardiopsis eggersii, is a perennial woody plant that belongs to the mallow family. You might also see it referenced by its botanical synonyms Abutilon virginianum or Sida eggersii in older literature. This species develops as a tree-like plant, typically growing with a single trunk and reaching heights greater than 13 to 16 feet, though environmental conditions can sometimes result in a shorter, multi-stemmed growth form.

Where Does It Come From?

This remarkable plant calls the Caribbean home, specifically native to Puerto Rico and the U.S. Virgin Islands. Its common name gives away one of its key locations – Jost Van Dyke, a small island in the British Virgin Islands archipelago.

  • Species observed
  • No observations

The Conservation Reality: Why This Plant Is Special

Here’s where things get serious. Bastardiopsis eggersii carries a Global Conservation Status of S1, which translates to Critically Imperiled. This classification means the species faces extreme rarity with typically five or fewer known occurrences and very few remaining individuals – we’re talking fewer than 1,000 plants in the wild.

This isn’t just rare; it’s teetering on the edge of extinction.

Should You Plant Jost Van Dyke’s Indian Mallow?

This is where we need to have an honest conversation. While supporting rare native plants is admirable, Bastardiopsis eggersii presents unique challenges:

  • Availability: Given its critical rarity, finding this plant through normal garden center channels is virtually impossible
  • Responsible sourcing: Any specimens would need to come from legitimate conservation propagation programs, not wild collection
  • Specialized care: Limited information exists about its specific growing requirements
  • Conservation priority: Wild populations need protection more than home cultivation

Growing Information (Limited Available Data)

Unfortunately, detailed growing information for this critically rare species is scarce. What we do know:

  • Plant type: Perennial woody tree
  • Mature size: Typically exceeds 13-16 feet in height
  • Climate: Adapted to Caribbean tropical conditions
  • USDA zones: Likely zones 10-11 based on native range

What You Can Do Instead

Rather than seeking out this rare species for your garden, consider these meaningful alternatives:

  • Support conservation efforts: Look for organizations working to protect Caribbean native plants
  • Choose related natives: Plant other native mallow family members appropriate to your region
  • Create habitat: Focus on native plants that support local ecosystems and pollinators
  • Spread awareness: Share information about rare plant conservation with fellow gardeners

The Bigger Picture

Jost Van Dyke’s Indian mallow represents something bigger than just one rare plant – it’s a reminder of how fragile our native ecosystems can be. While we can’t all grow this particular species in our backyards, we can all make choices that support biodiversity and conservation.

Every time you choose a native plant over a non-native alternative, you’re contributing to a healthier ecosystem. Every time you avoid invasive species, you’re protecting plants like Bastardiopsis eggersii from further habitat pressure.

Sometimes the most meaningful way to honor a rare plant isn’t to grow it ourselves, but to ensure it continues to exist in its natural habitat for future generations to discover and protect.

Bastardiopsis eggersii 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. Bastardiopsis eggersii is also known as:

Abutilon virginianum | USDA symbol: ABVI2
Sida eggersii Baker f. | USDA symbol: SIEG2

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.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Dilleniidae
Order: Malvales
Family: Malvaceae Juss. - Mallow family
Genus: Bastardiopsis (K. Schum.) Hassler - Indian mallow

Species: Bastardiopsis eggersii (Baker f.) Fuertes & Fryxell - Jost Van Dyke's Indian mallow

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