North America Non-native Plant

Medio Bluestem

Botanical name: Dichanthium annulatum var. papillosum de

USDA symbol: DIANP

Habit: grass

Native status: Not native but doesn't reproduce and persist in the wild

Synonyms: Andropogon papillosus Hochst. ex A. Rich. (ANPA15)  ⚘  Dichanthium papillosum (Hochst. ex A. Rich.) Stapf (DIPA17)   

Medio Bluestem: A Mysterious Grass with Limited Information Meet medio bluestem (Dichanthium annulatum var. papillosum de), a grass species that’s more enigma than garden staple. If you’ve stumbled across this name while researching native plants or grasses for your landscape, you’re probably scratching your head—and for good reason! What We ...

Medio Bluestem: A Mysterious Grass with Limited Information

Meet medio bluestem (Dichanthium annulatum var. papillosum de), a grass species that’s more enigma than garden staple. If you’ve stumbled across this name while researching native plants or grasses for your landscape, you’re probably scratching your head—and for good reason!

What We Know About Medio Bluestem

Medio bluestem belongs to the grass family (Poaceae) and goes by the botanical name Dichanthium annulatum var. papillosum de. This particular variety has some scientific synonyms that botanists have used over the years, including Andropogon papillosus and Dichanthium papillosum, which gives us clues about its taxonomic journey through scientific classification.

As a true grass, medio bluestem shares characteristics with other members of its family—think of the typical grass-like appearance with narrow leaves and seed heads that you’d expect from grasses, sedges, and their relatives.

The Information Gap

Here’s where things get tricky: reliable information about this specific variety is surprisingly scarce. We don’t have clear data about where it’s native to, what growing conditions it prefers, or how it behaves in garden settings. This lack of information raises some important red flags for gardeners.

Without knowing its native status, we can’t determine whether it’s an appropriate choice for native plant gardens or if it might potentially become invasive in certain regions. The geographic distribution remains a mystery, making it impossible to provide a helpful distribution map.

Should You Plant Medio Bluestem?

Given the limited reliable information available, we’d recommend proceeding with extreme caution—or better yet, looking for well-documented alternatives. Here’s why:

  • Unknown native status makes it impossible to determine if it supports local ecosystems
  • Lack of growing condition information means you’re gardening blind
  • No data on potential invasiveness could spell trouble for your local environment
  • Absence of wildlife benefit information means you don’t know if you’re helping pollinators and other creatures

Better Alternatives

Instead of taking a gamble on medio bluestem, consider these approaches:

  • Research well-documented native grasses in your region
  • Consult with local native plant societies or extension services
  • Visit native plant nurseries that specialize in regionally appropriate species
  • Look for grasses with proven track records for supporting local wildlife

The Bottom Line

While medio bluestem might sound intriguing, the lack of reliable information makes it a poor choice for responsible gardening. When it comes to adding grasses to your landscape, you’ll have much better success—and peace of mind—choosing species with well-documented growing requirements, known native ranges, and proven benefits to local ecosystems.

Remember, the best garden plants are those we understand well enough to grow successfully while supporting the environment around us. Until more information becomes available about medio bluestem, it’s better to stick with the tried-and-true native options in your area.

Medio Bluestem

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Dichanthium Willem. - bluestem

Species

Dichanthium annulatum (Forssk.) Stapf - Kleberg's bluestem

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