North America Non-native Plant

Bromus Pectinatus

Botanical name: Bromus pectinatus

USDA symbol: BRPE10

Habit: grass

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

Synonyms: Bromus adoensis Hochst. ex Steud. (BRAD2)   

Bromus pectinatus: The Mystery Grass That’s Hard to Pin Down Ever stumbled across a plant name that seems to exist in botanical limbo? Meet Bromus pectinatus, a grass species that’s about as elusive as a unicorn in your garden center. While this member of the grass family (and fellow monocot) ...

Bromus pectinatus: The Mystery Grass That’s Hard to Pin Down

Ever stumbled across a plant name that seems to exist in botanical limbo? Meet Bromus pectinatus, a grass species that’s about as elusive as a unicorn in your garden center. While this member of the grass family (and fellow monocot) does exist in botanical literature, finding reliable information about growing it is like searching for a needle in a haystack.

What We Do Know

Bromus pectinatus belongs to the brome grass genus, a group that includes both beloved native species and some rather notorious weedy characters. This particular species appears to have connections to African regions, particularly around Ethiopia, based on its botanical synonym Bromus adoensis. However, concrete information about its characteristics and cultivation requirements remains frustratingly sparse.

The Challenge for Gardeners

Here’s the thing about Bromus pectinatus – it’s not exactly what you’d call a mainstream garden plant. In fact, it’s so uncommon in cultivation that finding seeds, plants, or even detailed growing information is a real challenge. This isn’t necessarily because it’s a bad plant, but rather because it hasn’t made its way into the regular gardening world.

Should You Try to Grow It?

Without reliable information about this species’ growth habits, invasive potential, or cultivation requirements, it’s difficult to recommend for or against planting Bromus pectinatus. If you’re determined to work with brome grasses, you might want to consider better-documented native alternatives that are:

  • Easier to source from reputable native plant suppliers
  • Better understood in terms of growing requirements
  • Proven beneficial to local wildlife
  • Known to be non-invasive in your region

A Word of Caution

The brome grass family includes some species that can be quite aggressive spreaders. Without clear information about Bromus pectinatus’s behavior in gardens, it’s wise to proceed with caution. Some brome grasses are lovely natives that support wildlife, while others can take over and crowd out more desirable plants.

Better Alternatives

If you’re drawn to ornamental grasses, consider researching native grass species in your area. Your local native plant society or extension office can point you toward grasses that will thrive in your climate while supporting local ecosystems. These well-documented alternatives will give you the beauty and ecological benefits you’re looking for without the guesswork.

The Bottom Line

Sometimes in gardening, the most honest advice is to admit when information is lacking. Bromus pectinatus remains something of a botanical mystery in cultivation terms. While it may be a perfectly lovely grass in its native habitat, the lack of readily available growing information makes it a risky choice for home gardeners. When in doubt, stick with well-documented native plants that you know will succeed in your garden and support your local ecosystem.

Bromus Pectinatus

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 pectinatus Thunb.

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