North America Non-native Plant

Theobroma

Botanical name: Theobroma mammosum

USDA symbol: THMA10

Native status: Not native but doesn't reproduce and persist in the wild

Theobroma: When Plant Names Get Mysterious If you’ve stumbled upon the name Theobroma mammosum in your gardening research, you might be scratching your head—and for good reason! This particular plant name presents quite the botanical puzzle that even experienced gardeners and plant enthusiasts encounter from time to time. What’s in ...

Theobroma: When Plant Names Get Mysterious

If you’ve stumbled upon the name Theobroma mammosum in your gardening research, you might be scratching your head—and for good reason! This particular plant name presents quite the botanical puzzle that even experienced gardeners and plant enthusiasts encounter from time to time.

What’s in a Name?

The genus Theobroma is famous in the plant world, literally meaning food of the gods in Greek. This genus is home to some pretty spectacular plants, including the beloved cacao tree (Theobroma cacao) that gives us chocolate. However, when it comes to Theobroma mammosum, we run into a bit of a mystery.

This particular species name doesn’t appear in standard botanical databases or scientific literature, which suggests it might be:

  • A misidentified or misspelled plant name
  • An extremely rare or recently discovered species not yet widely documented
  • A local or colloquial name that hasn’t been formally recognized

The Geographic Question Mark

Without proper botanical documentation, we can’t pinpoint where this plant might naturally occur or if it exists as described. The Theobroma genus is generally native to tropical regions of Central and South America, but specific distribution information for mammosum simply isn’t available.

What This Means for Gardeners

If you’re interested in growing plants from the Theobroma genus, you’re in luck—just maybe not with this particular species name. Instead, consider these well-documented alternatives:

  • Theobroma cacao – The chocolate tree, perfect for tropical gardens
  • Theobroma grandiflorum – Cupuaçu, prized for its fruit
  • Theobroma bicolor – Pataste, another fruit-bearing species

Growing Theobroma Species Successfully

If you’re set on growing plants from this fascinating genus, here’s what most Theobroma species generally prefer:

  • Warm, humid tropical conditions
  • Rich, well-draining soil with plenty of organic matter
  • Partial shade to filtered sunlight
  • Consistent moisture without waterlogging
  • Protection from strong winds

The Bottom Line

While Theobroma mammosum remains an enigma in the botanical world, don’t let that discourage your interest in this amazing genus! If you’ve encountered this name somewhere, it might be worth double-checking the source or consulting with local botanical experts who might have more specific regional knowledge.

Remember, the world of plants is vast and sometimes mysterious—that’s part of what makes gardening such an adventure. When in doubt, stick with well-documented species, and you’ll be much more likely to achieve growing success while supporting known ecosystems and pollinators.

Theobroma

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Malvales

Family

Sterculiaceae Vent. - Cacao family

Genus

Theobroma L. - theobroma

Species

Theobroma mammosum Cuatrec. & Leon - theobroma

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