North America Native Plant

Greene’s Starviolet

Botanical name: Hedyotis greenei

USDA symbol: HEGR17

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Houstonia greenei (A. Gray) Terrell (HOGR3)  âš˜  Oldenlandia greenei A. Gray (OLGR)   

Greene’s Starviolet: A Southwestern Native Worth Getting to Know If you’re passionate about native plants and love discovering hidden gems in the botanical world, Greene’s starviolet (Hedyotis greenei) might just capture your curiosity. This petite annual wildflower is one of those delightfully under-the-radar native plants that calls the American Southwest ...

Greene’s Starviolet: A Southwestern Native Worth Getting to Know

If you’re passionate about native plants and love discovering hidden gems in the botanical world, Greene’s starviolet (Hedyotis greenei) might just capture your curiosity. This petite annual wildflower is one of those delightfully under-the-radar native plants that calls the American Southwest home.

What Exactly Is Greene’s Starviolet?

Greene’s starviolet is a native annual forb—basically a soft-stemmed, herbaceous plant that completes its entire life cycle in one growing season. You might also see it listed under its former scientific names, Houstonia greenei or Oldenlandia greenei, if you’re digging through older botanical references.

As a forb, this little plant lacks the woody stems of shrubs and trees, instead putting its energy into leaves, flowers, and seeds during its brief but purposeful life. It’s the kind of plant that appears, does its thing, and sets seed for next year’s generation—nature’s version of living fast and leaving a beautiful legacy.

Where Does It Call Home?

This charming native has quite specific real estate preferences. Greene’s starviolet is naturally found in Arizona and New Mexico, making it a true child of the Southwest. As a native species to the lower 48 states, it’s perfectly adapted to the unique conditions of this region.

The Challenge (And Appeal) of Growing Greene’s Starviolet

Here’s where things get interesting—and perhaps a bit challenging for the eager gardener. Greene’s starviolet is what you might call a botanical mystery plant. While we know it’s a lovely native with definite ecological value, detailed cultivation information is surprisingly scarce.

This scarcity of growing information could mean a few things:

  • It might be quite rare in the wild, making it less studied
  • It could have very specific habitat requirements that make cultivation tricky
  • It might simply be overlooked in favor of showier native plants
  • Seeds or plants may not be readily available in the trade

What We Do Know About Growing Conditions

While specific cultivation details are limited, we can make some educated guesses based on its native range. Plants from Arizona and New Mexico typically appreciate:

  • Well-draining soil (southwestern natives often hate soggy feet)
  • Plenty of sunshine
  • Low to moderate water once established
  • Protection from harsh winter conditions if grown outside its native range

As an annual, Greene’s starviolet will need to reseed itself each year or be replanted, so creating conditions where natural reseeding can occur would be ideal.

Should You Try Growing Greene’s Starviolet?

If you’re gardening in Arizona or New Mexico and are passionate about supporting local native plant communities, Greene’s starviolet could be a wonderful addition to a native plant garden—if you can find it! However, the limited availability and growing information mean this isn’t a plant for beginners or those looking for instant gratification.

Consider Greene’s starviolet if you:

  • Live within its native range
  • Enjoy the challenge of growing unusual plants
  • Want to support native plant conservation
  • Are creating a authentic southwestern native plant garden
  • Have experience with other native annuals

Alternative Native Choices

If Greene’s starviolet proves too elusive, consider other beautiful southwestern natives that are more readily available, such as desert marigold, ghost plant, or other native Hedyotis species that might be better documented and easier to source.

The Bottom Line

Greene’s starviolet represents the fascinating world of lesser-known native plants. While it may not be the easiest plant to grow or find, it’s exactly these kinds of plants that make native gardening such an adventure. Sometimes the journey of discovering and learning about a plant is just as rewarding as successfully growing it.

If you do decide to hunt down Greene’s starviolet, make sure to source it responsibly from reputable native plant sellers, and consider it an investment in preserving our native plant heritage—one tiny starviolet at a time.

Greene’s Starviolet

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

Rubiales

Family

Rubiaceae Juss. - Madder family

Genus

Hedyotis L. - starviolet

Species

Hedyotis greenei (A. Gray) W.H. Lewis - Greene's starviolet

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