North America Non-native Plant

Needlegrass

Botanical name: Stipa caucasica glareosa

USDA symbol: STCAG

Habit: grass

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

Synonyms: Stipa glareosa P.A. Smirn. (STGL7)   

Needlegrass: The Mysterious Stipa caucasica glareosa If you’ve stumbled across the name needlegrass (Stipa caucasica glareosa) in your plant research, you’ve discovered one of those fascinating botanical mysteries that keeps plant enthusiasts scratching their heads. This lesser-known member of the grass family represents the kind of specialized species that highlights ...

Needlegrass: The Mysterious Stipa caucasica glareosa

If you’ve stumbled across the name needlegrass (Stipa caucasica glareosa) in your plant research, you’ve discovered one of those fascinating botanical mysteries that keeps plant enthusiasts scratching their heads. This lesser-known member of the grass family represents the kind of specialized species that highlights just how much we still have to learn about the plant world.

What Exactly Is This Needlegrass?

Stipa caucasica glareosa belongs to the large and diverse Stipa genus, commonly known as feather grasses or needlegrasses. These grasses are part of the Poaceae family and are characterized by their distinctive seed heads that often feature long, feathery awns (those hair-like extensions you see on grass seeds). The name needlegrass comes from these sharp, needle-like seed structures.

Based on its scientific name, this particular species appears to have connections to the Caucasus region, though specific distribution information is surprisingly scarce in readily available botanical literature.

The Challenge of Lesser-Known Native Grasses

Here’s where things get interesting (and a bit frustrating): while Stipa caucasica glareosa is recognized as a valid species name, detailed growing information is remarkably limited. This isn’t uncommon with specialized grass species, especially those from specific geographic regions or with limited cultivation history.

What we do know is that it’s a grass or grass-like plant, which means it likely shares some general characteristics with other members of the Stipa genus:

  • Perennial growth habit
  • Clumping or bunching form
  • Drought tolerance (typical of many Stipa species)
  • Ornamental seed heads

Should You Try Growing It?

This is where we need to pump the brakes a bit. Without clear information about this plant’s native range, invasive potential, growing requirements, or even reliable sources for seeds or plants, it’s difficult to make a solid recommendation either way.

If you’re interested in needlegrasses for your garden, consider these better-documented alternatives:

  • Purple needlegrass (Stipa pulchra) – California’s state grass
  • Mexican feathergrass (Stipa tenuissima) – popular ornamental
  • Giant feathergrass (Stipa gigantea) – dramatic landscape specimen

The Bigger Picture

Species like Stipa caucasica glareosa remind us that botanical diversity extends far beyond the plants we commonly see in nurseries and gardens. They represent the incredible variety of grass species that have evolved in specific regions and ecosystems around the world.

For the curious gardener, this plant serves as a good reminder to:

  • Research thoroughly before introducing any new species to your garden
  • Choose well-documented native plants when possible
  • Appreciate the complexity and diversity of grass species
  • Support botanical research and documentation efforts

While we may not have all the answers about Stipa caucasica glareosa today, the world of botany is constantly evolving. Who knows? This mysterious needlegrass might be tomorrow’s garden star – but for now, it remains an intriguing botanical footnote that highlights how much we still have to discover about the plant kingdom.

Needlegrass

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

Stipa L.

Species

Stipa caucasica Schmalh. - needlegrass

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