Non-native Plants

Aira Caryophyllea Var. Multiculmis

Aira caryophyllea var. multiculmis

USDA symbol: AICAM2

annual grass

In the vast world of grasses, some species fly completely under the radar, and Aira caryophyllea var. multiculmis is definitely one of those quiet characters. This particular variety of grass might not be making headlines in gardening magazines, but it’s part of an interesting botanical story that’s worth exploring. Aira ...

Aira caryophyllea var. multiculmis: A Little-Known Grass Variety Worth Understanding

In the vast world of grasses, some species fly completely under the radar, and Aira caryophyllea var. multiculmis is definitely one of those quiet characters. This particular variety of grass might not be making headlines in gardening magazines, but it’s part of an interesting botanical story that’s worth exploring.

What Exactly Is This Grass?

Aira caryophyllea var. multiculmis belongs to the Poaceae family (that’s the grass family for those keeping track at home). It’s an annual grass, meaning it completes its entire life cycle in just one growing season. Think of it as nature’s way of living fast and leaving a beautiful legacy of seeds for next year.

This particular variety has a few aliases in the botanical world. You might also see it referred to as Aira caryophyllea L. ssp. multiculmis or Aira multiculmis, depending on which botanical reference you’re consulting. Like many plants, it’s gone through some naming changes as botanists have refined their understanding of plant relationships.

The Mystery of Limited Information

Here’s where things get interesting (and a bit frustrating for plant enthusiasts): specific information about this variety is surprisingly scarce. While its parent species, Aira caryophyllea, is better documented, the var. multiculmis seems to be one of those botanical gems that hasn’t received much attention in popular gardening circles.

What we do know is that this is a graminoid – a fancy term that includes grasses, sedges, rushes, and other grass-like plants. These plants are the unsung heroes of many ecosystems, providing structure, erosion control, and habitat for countless small creatures.

Geographic Distribution and Natural Range

The geographic distribution of this specific variety remains unclear in available literature. Many Aira species have European origins, but without specific documentation for var. multiculmis, it’s difficult to pinpoint exactly where you might encounter this grass in the wild.

Should You Grow It?

This is where we hit another interesting puzzle. With limited cultivation information available, growing Aira caryophyllea var. multiculmis would be quite the botanical adventure. The lack of readily available information about its growing requirements, native status, and garden performance makes it challenging to recommend for typical home landscapes.

If you’re someone who loves botanical mysteries and has experience with unusual grasses, this might intrigue you. However, for most gardeners, there are many well-documented native grasses that would be better choices for adding graminoid interest to your landscape.

Alternative Native Grasses to Consider

Instead of wrestling with the unknowns of this particular variety, consider exploring native grasses in your region. Here are some generally excellent options:

  • Little bluestem for prairie-style gardens
  • Buffalo grass for low-maintenance lawns in appropriate climates
  • Native fescues for cooler regions
  • Bunch grasses appropriate to your local ecosystem

The Takeaway

Aira caryophyllea var. multiculmis represents one of those fascinating botanical footnotes – a plant that exists in the scientific literature but remains largely mysterious in practical gardening terms. While it’s always exciting to discover unusual species, sometimes the most rewarding approach is to focus on well-documented native plants that we know will thrive and support local ecosystems.

If you do encounter this grass in the wild or in specialized botanical collections, take a moment to appreciate it as part of the incredible diversity of the grass family. Just remember that for your home landscape, you’ll probably have better luck (and more reliable information) with other grass species that have been more thoroughly studied and cultivated.

Aira caryophyllea var. multiculmis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Aira caryophyllea var. multiculmis is also known as:

Aira caryophyllea ssp. multiculmis Bonnier & | USDA symbol: AICAM
Aira multiculmis | USDA symbol: AIMU

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae Barnhart - Grass family
Genus: Aira L. - hairgrass

Species: Aira caryophyllea L. - silver hairgrass

Variety: Aira caryophyllea L. var. multiculmis (Dumort.) Mathieu

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