North America Non-native Plant

Teucrium Cubense Var. Densum

Botanical name: Teucrium cubense var. densum

USDA symbol: TECUD2

Life cycle: annual

Habit: forb

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

Synonyms: Teucrium cubense Jacq. ssp. depressum (Small) E.M. McClint. & Epling (TECUD)   

Teucrium cubense var. densum: A Mysterious Native Germander Worth Knowing About If you’ve stumbled across the name Teucrium cubense var. densum in your plant research, you’ve discovered one of those botanical mysteries that keeps native plant enthusiasts on their toes. This particular variety of germander is like that elusive friend ...

Rare plant alert!

Region: Conservation status by state

Status: S4S5T3T4: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 10,000 individuals ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Teucrium cubense var. densum: A Mysterious Native Germander Worth Knowing About

If you’ve stumbled across the name Teucrium cubense var. densum in your plant research, you’ve discovered one of those botanical mysteries that keeps native plant enthusiasts on their toes. This particular variety of germander is like that elusive friend who rarely shows up to parties – intriguing, but hard to pin down with details.

What Exactly Is This Plant?

Teucrium cubense var. densum is a member of the mint family (Lamiaceae) and falls into the germander genus. As a forb – which is botanist-speak for a non-woody flowering plant – it lacks the thick, woody stems you’d find on shrubs or trees. Instead, it’s more like your typical garden perennial, with its growing points staying close to or below ground level.

You might also see this plant listed under its synonym, Teucrium cubense ssp. depressum, which can add to the confusion when you’re trying to track down information about it.

The Rarity Factor

Here’s where things get interesting – and a bit concerning for conservation-minded gardeners. This variety carries a Global Conservation Status of S4S5T3T4, which suggests it falls somewhere in the uncommon to rare category. While the exact interpretation of this ranking isn’t crystal clear from available sources, it’s a red flag that tells us this isn’t your run-of-the-mill garden center plant.

Geographic Distribution

Unfortunately, specific information about where Teucrium cubense var. densum naturally occurs is not readily available in botanical databases. This lack of clear distribution data adds another layer of mystery to this already enigmatic plant.

Should You Grow It?

This is where we need to pump the brakes a bit. Given the potential rarity of this variety and the lack of clear information about its conservation needs, here’s what responsible gardeners should consider:

  • Source responsibly: If you’re determined to grow this plant, only obtain it from reputable native plant nurseries that can verify its legal and ethical sourcing
  • Consider alternatives: Other Teucrium species or native plants with similar characteristics might be better choices for your garden
  • Do your homework: Contact local botanists, native plant societies, or extension services for more specific information about this variety in your area

Growing Conditions and Care

Here’s the frustrating part for would-be growers – specific cultivation information for Teucrium cubense var. densum is virtually non-existent in horticultural literature. Without clear guidance on its preferred growing conditions, USDA hardiness zones, or care requirements, attempting to grow this plant becomes a bit of a botanical adventure.

If you do manage to source this variety, your best bet would be to research the growing conditions of related Teucrium species and proceed with careful observation and adaptation.

The Bottom Line

Teucrium cubense var. densum represents one of those fascinating gaps in our gardening knowledge – a plant that exists in botanical records but remains largely mysterious in cultivation. While the plant detective in you might be intrigued by the challenge, the responsible approach is to focus on well-documented native alternatives unless you have access to expert guidance and ethically sourced material.

Sometimes the most interesting plants are the ones we admire from afar, knowing that their rarity makes them special precisely because they’re not in every garden. If native germinaders appeal to you, consider researching other Teucrium species or native mint family plants that are better understood and more readily available for home cultivation.

Teucrium Cubense Var. Densum

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

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Teucrium L. - germander

Species

Teucrium cubense Jacq. - small coastal germander

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