Native Plants

Everglades Key False Buttonweed

Spermacoce terminalis

USDA symbol: SPTE8

perennial forb

Lower 48 states: native

If you’re passionate about native Florida gardening and love discovering plants that most people have never heard of, let me introduce you to Everglades Key false buttonweed (Spermacoce terminalis). This diminutive perennial might not win any beauty contests, but it’s got character – and it’s as Florida-native as they come! ...

Everglades Key False Buttonweed may be listed as rare in your area.
Global Conservation Status

Status: S2S4 | Apparently Secure: Uncommon but not rare, and usually widespread. Possible cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals.

Everglades Key False Buttonweed: A Tiny Native Gem for Florida Gardens

If you’re passionate about native Florida gardening and love discovering plants that most people have never heard of, let me introduce you to Everglades Key false buttonweed (Spermacoce terminalis). This diminutive perennial might not win any beauty contests, but it’s got character – and it’s as Florida-native as they come!

What Makes This Plant Special?

Everglades Key false buttonweed is what botanists call a forb – basically a non-woody herbaceous plant that stays low to the ground. Don’t let the unassuming name fool you; this little plant has been quietly doing its thing in South Florida’s unique ecosystems long before any of us arrived on the scene.

You might also see this plant listed under its former scientific name, Borreria terminalis, if you’re digging through older gardening resources or botanical references.

Where Does It Call Home?

Here’s where things get interesting – and a bit exclusive. Everglades Key false buttonweed is found only in Florida, making it a true Florida endemic. This isn’t a plant you’ll stumble across in Georgia or Alabama; it’s chosen the Sunshine State as its one and only home.

  • Species observed
  • No observations

Should You Plant It in Your Garden?

The honest answer? It depends on what kind of gardener you are and where you live. This plant is perfect for:

  • Native plant enthusiasts who want something truly unique
  • Gardeners in South Florida looking for authentic local flora
  • Those creating naturalized areas or wildflower meadows
  • Anyone working on habitat restoration projects

However, if you’re looking for a showstopper that’ll have the neighbors asking for cuttings, this probably isn’t your plant. Everglades Key false buttonweed is more about ecological authenticity than eye-catching blooms.

The Growing Reality Check

Here’s where I need to be upfront with you – detailed growing information for Spermacoce terminalis is somewhat limited, which tells you something about how specialized this plant is. What we do know is that as a South Florida native, it’s adapted to:

  • Warm, subtropical conditions (USDA zones 9b-11)
  • Well-draining, sandy soils typical of its native habitat
  • Full sun to partial shade conditions
  • Natural rainfall patterns of South Florida

Planting and Care Tips

If you’re determined to grow this Florida native, here are some general guidelines based on its natural habitat preferences:

  • Plant in spring after any threat of cold weather has passed
  • Choose a sunny to partially shaded location
  • Ensure excellent drainage – soggy soil is likely a no-go
  • Once established, it should be relatively low-maintenance
  • Avoid over-fertilizing, as natives typically prefer lean soils

The Bottom Line

Everglades Key false buttonweed isn’t for everyone, and that’s okay. It’s a plant for the native gardening purist, the ecological gardener, or someone working on a very specific South Florida restoration project. If you’re just starting your native plant journey, you might want to begin with some easier, more widely available Florida natives and work your way up to the rare gems like this one.

But if you’re already deep into native gardening and you love the idea of growing something that’s truly unique to Florida, this little forb might just be the perfect addition to your collection. Just remember – with great native plants comes great responsibility to source them ethically and never collect from wild populations.

Spermacoce terminalis 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. Spermacoce terminalis is also known as:

Borreria terminalis | USDA symbol: BOTE6

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: Asteridae
Order: Rubiales
Family: Rubiaceae Juss. - Madder family
Genus: Spermacoce L. - false buttonweed

Species: Spermacoce terminalis (Small) Kartesz & Gandhi - Everglades Key false buttonweed

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