Wavy Hairgrass
Avenella flexuosa
Found in grassy balds, high elevation rocky summits, rocky or sandy woodlands. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you
Native to Alabama. How scores work Is it native here?
Profile 88%
- Height
- Up to about 32 inches
- Spread
- 1–2 feet
- Light
- Partial shade, Full sun
- Soil moisture
- Dry to moist
Space about 1.5 ft apart from its recorded spread, about 44 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
- Bloom
- April to August
Not yet recorded · Leaves
Recorded in 5 Alabama counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Cliffs, ledges and rocky summits

Dry, deep-sand ridges with longleaf pine and turkey oak, kept open by fire.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Alabama. Shared habitat, not food. 123 animals.
- Wood DuckAix sponsa
- Wood ThrushHylocichla mustelina
- Yellow-bellied SapsuckerSphyrapicus varius
- Yellow-billed CuckooCoccyzus americanus
- Yellow-breasted ChatIcteria virens
- Yellow-crowned Night-heronNyctanassa violacea
- Yellow-rumped WarblerDendroica coronata
- American CootFulica americana
- American CrowCorvus brachyrhynchos
- American KestrelFalco sparverius
- American WoodcockScolopax minor
- Bald EagleHaliaeetus leucocephalus
- Baltimore OrioleIcterus galbula
- Bank SwallowRiparia riparia
- Barred OwlStrix varia
- Black VultureCoragyps atratus
- Black-billed CuckooCoccyzus erythropthalmus
- Blue-winged WarblerVermivora pinus
- Broad-winged HawkButeo platypterus
- Brown ThrasherToxostoma rufum
- CanvasbackAythya valisineria
- Carolina ChickadeePoecile carolinensis
- Cerulean WarblerDendroica cerulea
- Chipping SparrowSpizella passerina
Who uses this plant?
3BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Deschampsia
- Pooecetes gramineusVesper Sparrow
- Spizella passerinaChipping Sparrow
- Spizella pusillaField Sparrow
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
Plant details
- Family
- Poaceae
- Hardiness
- Zones 4–7
- Flower color
- Yellow
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “April to August” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Yellow” · Lady Bird Johnson Wildflower Center
- Hardiness · “Zones 4–7” · Missouri Botanical Garden Plant Finder
- Height · “Up to about 32 inches” · Lady Bird Johnson Wildflower Center (ranked first; Missouri Botanical Garden Plant Finder differs)
- Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
- Light · “Partial shade; Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Soil · “Dry; Moist (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Spread · “1–2 feet” · Missouri Botanical Garden Plant Finder
Also known as
Deschampsia flexuosa; Hair Grass; hairgrass
Conservation status
| Alabama rank | SNR |
|---|---|
| Global rank | G5 |
| AL status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- Alabama Plant Atlas
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

























