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Mexican Muhly

Muhlenbergia mexicana

In the Carolinas and Georgia, found in mafic and calcareous fens, seeps, dry rocky woodlands, barrens, outcrops, and disturbed areas, usually over mafic or calcareous substrates. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you

27
Good

Native to Arkansas. How scores work Is it native here?

Profile 100%

Height
About 3 feet
Light
Partial shade, Full sun
Soil moisture
Dry to wet
Will it fit your yard?

At a glance

Bloom
September to October
Fruiting season
Summer to fall

Not yet recorded · Spread · Life cycle · Leaves

Recorded in 2 Arkansas counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 5

Glades, barrens and outcrops on limestone

Standing water, Flat Rock Cedar Glades and Barrens SNA, Rutherford County
Standing water on a limestone glade. Shown: Flat Rock Cedar Glades and Barrens State Natural Area, Rutherford County, Tennessee, a neighboring state.Standing water, Flat Rock Cedar Glades and Barrens SNA, Rutherford County, Alan M. Cressler / U.S. Geological Survey, undated. Public domain. Source record.

Seeps and springs

Places where groundwater keeps the soil or rock wet, such as seepage slopes and spring runs.

Forests and woodlands

Forest or woodland where the source does not say how moist or dry.

Glades, barrens and outcrops on mafic or serpentine rock

Open, thin-soil openings, outcrops and cliffs on dark, magnesium- or iron-rich rock such as serpentine, diabase or gabbro.

Roadsides, fields and disturbed ground

Ground opened by people: roadsides, old fields, pastures, fencerows and lots.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

4CaterpillarsGenus host records with ranges including AR

Genus host records with ranges including AR · Muhlenbergia

  • Anicla infectaGreen Cutworm Moth
  • Cercyonis pegalaCommon Wood Nymph
  • Papaipema nebrisStalk Borer
  • Trichordestra legitimaStriped Garden Caterpillar Moth
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
1BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Muhlenbergia

  • Meleagris gallopavoWild Turkey
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Poaceae
Flower color
Green
Growth rate
Moderate
Growth habit
Spreads by rhizomes
Foliage color
Green
Fruit begins
Summer
Fruit ends
Fall

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope

Conservation status

Arkansas rankSNR
Global rankG5
AR statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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How to check your spot

Growing cautions

  • Spreads by rhizomes. USDA PLANTS lists its growth form as rhizomatous. USDA PLANTS

For planning only; these do not change the score or Fit.

Sources