North America Native Plant

Desert Twinbugs

Botanical name: Dicoria canescens hispidula

USDA symbol: DICAH

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Dicoria canescens A. Gray var. hispidula (Rydb.) Cronquist (DICAH2)   

Desert Twinbugs: A Rare Native Annual for Southwestern Gardens If you’re passionate about native plants and love supporting your local ecosystem, you might be intrigued by desert twinbugs (Dicoria canescens hispidula). This lesser-known native annual brings authentic desert character to specialized gardens, though it’s not your typical garden center find. ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Desert Twinbugs: A Rare Native Annual for Southwestern Gardens

If you’re passionate about native plants and love supporting your local ecosystem, you might be intrigued by desert twinbugs (Dicoria canescens hispidula). This lesser-known native annual brings authentic desert character to specialized gardens, though it’s not your typical garden center find.

What Exactly Are Desert Twinbugs?

Desert twinbugs are annual forbs—that’s botanist speak for herbaceous flowering plants that complete their entire life cycle in one growing season. As native plants of the southwestern United States, they’ve evolved to thrive in some pretty tough conditions that would make other plants throw in the trowel.

You might also see this plant referenced by its synonym, Dicoria canescens var. hispidula, in older botanical references. But whatever you call it, this little desert dweller has carved out its niche in the arid landscapes of California and Nevada.

Where Do Desert Twinbugs Call Home?

These hardy natives are naturally found across California and Nevada, where they’ve adapted to life in desert and semi-desert environments. They’re part of that amazing group of plants that somehow make a living in places where most of us would need a serious water bottle!

Should You Plant Desert Twinbugs?

Here’s where things get a bit complicated. Desert twinbugs have a Global Conservation Status of S4T3?, which essentially means their conservation status is a bit of a question mark. While they’re not critically endangered, their somewhat uncertain status means you should be thoughtful about sourcing.

The Good News:

  • They’re native plants, so you’re supporting local ecosystems
  • As annuals, they can add seasonal interest to desert gardens
  • They’re adapted to harsh conditions, meaning less work for you once established
  • Perfect for authentic xeriscaping and desert landscaping projects

The Considerations:

  • Limited availability—you won’t find these at your neighborhood nursery
  • Best suited for very specific garden styles (think desert/xeriscape)
  • Uncertain conservation status means responsible sourcing is crucial
  • Limited information available about cultivation requirements

Growing Desert Twinbugs Successfully

If you decide to add desert twinbugs to your garden, here’s what we know about keeping them happy:

Growing Conditions: Based on their natural habitat, these plants likely prefer well-draining, sandy soils typical of desert environments. They’ve evolved for low-water conditions, so don’t coddle them with too much irrigation.

Climate Needs: Given their native range in California and Nevada, they’re likely suited for USDA hardiness zones 8-10, though exact zone tolerance isn’t well documented.

Garden Style: Desert twinbugs are perfect for naturalized desert gardens, xeriscapes, and native plant gardens where you want authentic regional character rather than flashy blooms.

The Responsible Gardener’s Approach

If you’re set on growing desert twinbugs, please source them responsibly. Look for:

  • Native plant sales from reputable botanical gardens or native plant societies
  • Seeds collected from cultivated plants, not wild populations
  • Nurseries that specialize in native plants and can verify their sourcing

Never collect seeds or plants from wild populations, especially given the uncertain conservation status.

The Bottom Line

Desert twinbugs are fascinating native plants that deserve a place in specialized desert gardens. While they’re not the easiest plants to find or grow, dedicated native plant enthusiasts will appreciate their authentic desert character and ecological value. Just remember to source responsibly and be patient—good things come to those who wait, especially in the native plant world!

If desert twinbugs prove too elusive for your garden plans, consider other native desert annuals from your region that might be more readily available and equally beneficial to local wildlife.

Desert Twinbugs

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

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Dicoria Torr. ex A. Gray - twinbugs

Species

Dicoria canescens A. Gray - 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