North America Non-native Plant

Spotted Signal Grass

Botanical name: Brachiaria nigropedata

USDA symbol: BRNI5

Habit: grass

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

Spotted Signal Grass: A Mystery in the Plant World If you’ve come across the name spotted signal grass (Brachiaria nigropedata) in your gardening research, you might be scratching your head trying to find more information about this elusive plant. Well, you’re not alone – and there’s a good reason why ...

Spotted Signal Grass: A Mystery in the Plant World

If you’ve come across the name spotted signal grass (Brachiaria nigropedata) in your gardening research, you might be scratching your head trying to find more information about this elusive plant. Well, you’re not alone – and there’s a good reason why details are so hard to come by.

The Mystery of Brachiaria nigropedata

Here’s where things get interesting (and a bit puzzling): Brachiaria nigropedata appears to be one of those botanical mysteries that occasionally pop up in plant databases or lists without much supporting documentation. Despite extensive searching through botanical references, native plant databases, and horticultural resources, reliable information about this specific species is virtually non-existent.

This could mean several things:

  • It might be an extremely rare or obscure species with limited documentation
  • The name could be a misidentification or taxonomic synonym that’s fallen out of use
  • It may have been reclassified under a different genus or species name

What We Do Know About Brachiaria Grasses

While we can’t provide specific details about Brachiaria nigropedata, we can tell you about the Brachiaria genus in general. These are typically tropical and subtropical grasses, many of which are native to Africa. Some species in this genus have been widely distributed around the world, and several have become problematic invasive species in certain regions.

Before You Plant: A Word of Caution

Given the uncertainty surrounding this particular plant name and the fact that some Brachiaria species are known to be invasive, we’d strongly recommend steering clear of planting anything labeled as Brachiaria nigropedata until you can verify exactly what plant you’re dealing with.

Better Alternatives for Your Garden

Instead of chasing after this botanical mystery, why not consider some well-documented native grasses that can provide similar ornamental value? Here are some fantastic options:

  • Little bluestem (Schizachyrium scoparium) – a beautiful native bunch grass
  • Buffalo grass (Poaceae species native to your region)
  • Native sedges (Carex species) for texture and wildlife value
  • Switchgrass (Panicum virgatum) for dramatic height and movement

The Importance of Proper Plant Identification

This little botanical mystery serves as a perfect reminder of why proper plant identification is so crucial in gardening. Before adding any plant to your landscape, especially one with limited information available, take these steps:

  • Verify the botanical name through multiple reputable sources
  • Check your local extension office or native plant society
  • Consult with knowledgeable local nurseries or botanists
  • Research the plant’s native range and potential invasiveness

When in Doubt, Go Native

Rather than taking risks with mysterious or poorly documented plants, your safest bet is always to choose well-known native species for your region. Native plants come with the bonus of supporting local wildlife, being adapted to your climate, and usually requiring less maintenance once established.

Your local native plant society, extension office, or master gardener program can help you identify fantastic native alternatives that will thrive in your specific growing conditions while supporting your local ecosystem.

Sometimes in gardening, the most interesting discoveries come from the plants we can’t quite pin down – but that doesn’t mean we should plant them in our yards!

Spotted Signal Grass

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

Brachiaria (Trin.) Griseb. - signalgrass

Species

Brachiaria nigropedata (Munro ex Ficalho & Hiern) Stapf - spotted signal grass

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