Native Plants

Desert Twinbugs

Dicoria canescens wetherillii

USDA symbol: DICAW

annual forb

Lower 48 states: native

If you’re passionate about native plants and love discovering lesser-known species, desert twinbugs (Dicoria canescens wetherillii) might just pique your interest. This annual forb is one of those quiet natives that doesn’t get much fanfare, but plays its part in the intricate web of our native ecosystems. Desert twinbugs is ...

Desert Twinbugs may be listed as rare in your area.
Global Conservation Status

Status: S4T2?Q | 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.

Desert Twinbugs: A Rare Native Annual Worth Knowing

If you’re passionate about native plants and love discovering lesser-known species, desert twinbugs (Dicoria canescens wetherillii) might just pique your interest. This annual forb is one of those quiet natives that doesn’t get much fanfare, but plays its part in the intricate web of our native ecosystems.

What Exactly is Desert Twinbugs?

Desert twinbugs is a native annual forb, which simply means it’s a non-woody plant that completes its entire life cycle in one growing season. As a forb, it lacks the significant woody tissue you’d find in shrubs or trees, instead producing soft, herbaceous growth that dies back each year.

You might also encounter this plant listed under its scientific synonyms: Dicoria canescens A. Gray var. wetherillii or Dicoria wetherillii. But whatever name you use, you’re talking about the same charming little native.

Where Does It Call Home?

Desert twinbugs has a relatively limited native range, naturally occurring in Colorado and Utah. This restricted distribution makes it a special find for gardeners in these areas who want to grow truly local plants.

  • Species observed
  • No observations

Should You Grow Desert Twinbugs?

Here’s where things get interesting – and important. Desert twinbugs has a conservation status that suggests it may be uncommon or of conservation concern. While the exact classification is somewhat unclear (listed as S4T2?Q), this indicates we should treat this plant with special care.

If you’re considering growing desert twinbugs:

  • Only source seeds or plants from reputable native plant nurseries
  • Never collect from wild populations
  • Consider it a stewardship opportunity to help preserve a potentially rare native
  • Focus on using locally-sourced material if available

The Growing Challenge

We’ll be honest with you – specific growing information for desert twinbugs is limited. As with many lesser-known natives, detailed cultivation guides are scarce. However, as an annual forb native to Colorado and Utah, we can make some educated assumptions about its preferences.

Being native to these semi-arid regions, desert twinbugs likely appreciates:

  • Well-draining soils
  • Full sun to partial shade
  • Minimal supplemental watering once established
  • Rocky or sandy soil conditions

A Plant for the Curious Gardener

Desert twinbugs isn’t going to be the showstopper in your garden border. Instead, it’s a plant for gardeners who appreciate the subtler side of native landscaping – those who understand that every native species, no matter how small or unassuming, has a role to play.

If you live within its native range and can source it responsibly, desert twinbugs could be a fascinating addition to a native plant collection, rock garden, or naturalized area. Just remember that as an annual, you’ll need to allow it to self-seed or collect seeds for replanting each year.

The Bottom Line

While we don’t have all the growing details we’d love to share, desert twinbugs represents something valuable: a connection to the specific flora of Colorado and Utah. If you’re lucky enough to find responsibly-sourced seeds or plants, and you’re committed to learning through trial and observation, this little native could be a rewarding addition to your garden.

Just remember – with potentially limited populations in the wild, every garden that successfully grows desert twinbugs could be contributing to the conservation of this native species. And that’s pretty special, don’t you think?

Dicoria canescens wetherillii 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. Dicoria canescens wetherillii is also known as:

Dicoria canescens Gray var. wetherillii | USDA symbol: DICAW2
Dicoria wetherillii | USDA symbol: DIWE

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: Asterales
Family: Asteraceae Bercht. & J. Presl - Aster family
Genus: Dicoria Torr. ex A. Gray - twinbugs

Species: Dicoria canescens A. Gray - desert twinbugs

Subspecies: Dicoria canescens A. Gray ssp. wetherillii (Eastw.) Kartesz - desert twinbugs

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