North America Native Plant

Small Matweed

Botanical name: Guilleminea densa var. aggregata

USDA symbol: GUDEA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Small Matweed: A Lesser-Known Native Ground Cover Worth Discovering If you’re on the hunt for native plants that fly under the radar, small matweed (Guilleminea densa var. aggregata) might just be the hidden gem you’ve been looking for. This unassuming little perennial belongs to that special category of plants that ...

Small Matweed: A Lesser-Known Native Ground Cover Worth Discovering

If you’re on the hunt for native plants that fly under the radar, small matweed (Guilleminea densa var. aggregata) might just be the hidden gem you’ve been looking for. This unassuming little perennial belongs to that special category of plants that do their job quietly and efficiently, without demanding much attention or fanfare.

What Exactly Is Small Matweed?

Small matweed is a native perennial forb that forms low, spreading mats across the ground. As a forb, it’s an herbaceous plant without any woody stems above ground – think of it as nature’s carpet rather than furniture. This plant keeps its growing points at or below ground level, helping it survive through tough conditions year after year.

Where Does Small Matweed Call Home?

This native beauty has made itself at home across a surprisingly diverse range of states, stretching from the southwestern deserts to unexpected spots in the southeast. You’ll find small matweed growing naturally in Arizona, California, New Mexico, Oklahoma, South Carolina, and Texas. That’s quite a geographic spread for such a humble little plant!

Why Consider Small Matweed for Your Garden?

Here’s where things get a bit tricky – small matweed is one of those plants that hasn’t made it into the mainstream gardening world yet. While we know it’s a hardy native perennial that forms ground-covering mats, the specifics about its appearance, growing requirements, and garden performance remain largely undocumented in common horticultural resources.

What we can say with confidence is that as a native plant, small matweed has evolved to thrive in the climates and conditions of its natural range. This typically translates to:

  • Better adaptation to local weather patterns
  • Reduced need for supplemental watering once established
  • Natural resistance to local pests and diseases
  • Potential benefits for local wildlife and ecosystems

The Challenge of Growing Small Matweed

If you’re intrigued by the idea of growing small matweed, you’ll be joining the ranks of true native plant pioneers. This variety is so specialized that detailed growing information simply isn’t widely available. You won’t find it at your typical garden center, and even native plant nurseries might need to special order it.

The lack of cultivation information means you’d be experimenting based on its natural habitat preferences. Given its wide distribution from desert Southwest to humid Southeast, it’s likely quite adaptable, but the specific conditions it prefers remain a gardening mystery.

Should You Take the Plunge?

Small matweed presents an interesting dilemma for native plant enthusiasts. On one hand, it’s a legitimate native species that deserves consideration. On the other hand, the lack of horticultural information makes it a risky choice for gardeners who want predictable results.

If you’re the adventurous type who enjoys experimenting with unusual natives, small matweed could be worth pursuing. Just be prepared for some trial and error, and consider it a long-term gardening project rather than a quick landscape solution.

Better-Known Alternatives

If you’re drawn to the idea of a native ground-covering perennial but want something with more established growing guidelines, consider researching other native ground covers from your specific region. Many states have well-documented native alternatives that can provide similar ecological benefits with more predictable garden performance.

Small matweed remains one of those fascinating plants that reminds us how much we still don’t know about our native flora. While it may not be ready for prime time in most gardens, it represents the kind of specialized native diversity that makes regional ecosystems so remarkable.

Small Matweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Caryophyllales

Family

Amaranthaceae Martinov - Amaranth family

Genus

Guilleminea Kunth - matweed

Species

Guilleminea densa (Humb. & Bonpl. ex Schult.) Moq. - small matweed

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