North America Native Plant

Naked Turtleback

Botanical name: Psathyrotopsis scaposa

USDA symbol: PSSC14

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Psathyrotes scaposa A. Gray (PSSC)   

Naked Turtleback: A Mysterious Desert Native Worth Knowing About Meet the naked turtleback (Psathyrotopsis scaposa), one of the Southwest’s most enigmatic native plants. If you’ve never heard of this little forb, you’re not alone – it’s one of those under-the-radar species that even seasoned native plant enthusiasts might not recognize. ...

Naked Turtleback: A Mysterious Desert Native Worth Knowing About

Meet the naked turtleback (Psathyrotopsis scaposa), one of the Southwest’s most enigmatic native plants. If you’ve never heard of this little forb, you’re not alone – it’s one of those under-the-radar species that even seasoned native plant enthusiasts might not recognize. But that mystery is exactly what makes it intriguing!

What Is Naked Turtleback?

Naked turtleback is a native forb – that’s garden-speak for a non-woody flowering plant that dies back to ground level each year. Unlike shrubs or trees, forbs put their energy into flowers and seeds rather than building up woody stems. This particular species can be either annual or perennial, meaning it might complete its entire life cycle in one year or return for multiple seasons.

You might also see this plant listed under its botanical synonym, Psathyrotes scaposa, in older references. The scientific community occasionally shuffles plant names around as they learn more about plant relationships – it’s like botanical musical chairs!

Where Does It Call Home?

This desert dweller is native to the southwestern United States, specifically documented in New Mexico and Texas. As a true native, it has evolved alongside local wildlife and climate conditions over thousands of years, making it naturally adapted to the challenging conditions of the American Southwest.

Should You Plant Naked Turtleback?

Here’s where things get tricky. While naked turtleback sounds like it could be a fantastic addition to a native plant garden, there’s a catch – reliable information about this species is surprisingly scarce. This could mean several things:

  • It might be extremely rare in the wild
  • It could be difficult to cultivate
  • Seeds or plants may not be commercially available
  • Its specific growing requirements may not be well understood

The Challenge of Growing the Unknown

Without detailed information about naked turtleback’s preferred growing conditions, soil requirements, water needs, or hardiness zones, successfully cultivating this plant becomes a bit like solving a botanical puzzle. We know it’s adapted to the desert Southwest, which suggests it likely prefers:

  • Well-draining, sandy or rocky soils
  • Full sun exposure
  • Minimal water once established
  • Hot, dry growing conditions

However, these are educated guesses based on its native range rather than proven cultivation practices.

A Word of Caution

If you’re interested in naked turtleback, proceed with caution and responsibility. Since we don’t know its conservation status, it’s crucial to only source plant material from reputable native plant nurseries that practice ethical collection methods. Never collect seeds or plants from wild populations, as this could harm already vulnerable populations.

Better-Known Alternatives

While naked turtleback remains an intriguing mystery, consider these well-documented southwestern natives that can provide similar ecological benefits:

  • Desert marigold (Baileya multiradiata) – cheerful yellow flowers and proven garden performance
  • Ghost plant (Graptopetalum paraguayense) – unique form and easy care
  • Brittlebush (Encelia farinosa) – reliable bloomer with silvery foliage

The Bottom Line

Naked turtleback represents one of those fascinating botanical mysteries that reminds us how much we still have to learn about our native flora. While it might not be the easiest choice for your garden right now, it serves as a wonderful example of the hidden diversity in our southwestern ecosystems.

If you’re drawn to rare or unusual natives, consider supporting botanical research organizations or native plant societies that work to document and preserve these lesser-known species. Who knows? Your interest might help unlock the secrets of successfully growing this enigmatic desert dweller!

Naked Turtleback

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

Psathyrotopsis Rydb. - turtleback

Species

Psathyrotopsis scaposa (A. Gray) H. Rob. - naked turtleback

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