North America Non-native Plant

Bromus Intermedius

Botanical name: Bromus intermedius

USDA symbol: BRIN13

Habit: grass

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

Bromus intermedius: The Mystery Grass Worth Understanding If you’ve stumbled across the name Bromus intermedius in your botanical wanderings, you’re not alone in scratching your head. This grass species exists in something of a taxonomic twilight zone, with limited documentation and unclear cultivation potential. Let’s dive into what we do ...

Bromus intermedius: The Mystery Grass Worth Understanding

If you’ve stumbled across the name Bromus intermedius in your botanical wanderings, you’re not alone in scratching your head. This grass species exists in something of a taxonomic twilight zone, with limited documentation and unclear cultivation potential. Let’s dive into what we do know about this elusive member of the brome grass family.

What Exactly Is Bromus intermedius?

Bromus intermedius belongs to the brome grass genus, a large group of annual and perennial grasses found worldwide. As its name suggests, this species appears to be intermediate in characteristics between other brome species, though specific details about its appearance and growth habits remain poorly documented in readily available sources.

Like other brome grasses, Bromus intermedius is wind-pollinated and produces the characteristic drooping seed heads that give brome grasses their distinctive look. However, without clear documentation of its specific traits, it’s difficult to distinguish it from its better-known cousins.

The Documentation Dilemma

Here’s where things get interesting (and a bit frustrating): Bromus intermedius appears to be one of those plant species that exists in botanical literature but lacks the detailed cultivation and ecological information that gardeners typically need. Its native status, geographic distribution, and invasive potential remain unclear in standard horticultural references.

Should You Grow Bromus intermedius?

Given the limited information available about this species, most gardeners would be better served by choosing well-documented native grass alternatives. Without knowing its growth habits, ecological impact, or cultivation requirements, planting Bromus intermedius would be something of a botanical gamble.

Better Native Grass Alternatives

Instead of puzzling over this mystery grass, consider these well-documented native options:

  • Buffalo grass (Poaceae family members) for dry, prairie-style landscapes
  • Native fescues for cool-season areas
  • Regional bunch grasses that provide clear wildlife and ecological benefits
  • Native sedges for wetland or rain garden applications

The Takeaway for Gardeners

While Bromus intermedius might be a legitimate species, the lack of clear cultivation information, uncertain native status, and unknown ecological impact make it a poor choice for most gardening situations. Your time and garden space are better invested in well-documented native grasses that offer proven benefits to local wildlife and ecosystems.

If you’re specifically interested in brome grasses, work with local native plant societies or extension offices to identify which species are native to your area and appropriate for cultivation. They can guide you toward grasses that will truly enhance your landscape while supporting local wildlife.

Sometimes in gardening, as in life, the mystery isn’t worth solving when there are better, clearer options available. Save your gardening energy for plants with proven track records and documented benefits!

Bromus Intermedius

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

Bromus L. - brome

Species

Bromus intermedius Guss.

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