Porter's Reedgrass
Calamagrostis porteri
Found in dry to moderately dry forests and woodlands, especially in fire-maintained situations, forest edges, serpentine barrens, cliff bases. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you
Native to West Virginia. How scores work Is it native here?
Profile 88%
- Height
- Up to about 4 feet
- Light
- Partial shade, Full shade, Full sun
- Soil moisture
- Dry to moist
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At a glance
- Life cycle
- Perennial
- Bloom
- July and September
Not yet recorded · Spread · Leaves
Recorded in 3 West Virginia counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Forests and open woodlands on dry ridges and slopes, often oak or pine.
Forests between dry and moist, often oak-hickory on slopes.
Forest or woodland where the source does not say how moist or dry.
Borders of forests, clearings and shrubby thickets.
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.
Cliffs, ledges and rocky summits
Cliffs, ledges, rock outcrops, talus and rocky summits where the source does not name the rock. A named rock files the place under its own glade or outcrop type instead.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in West Virginia. Shared habitat, not food. 119 animals.
- American GoldfinchCarduelis tristis
- American RobinTurdus migratorius
- Blue GrosbeakPasserina caerulea
- Blue JayCyanocitta cristata
- Blue-gray GnatcatcherPolioptila caerulea
- Brown CreeperCerthia americana
- Cedar WaxwingBombycilla cedrorum
- Chipping SparrowSpizella passerina
- Common NighthawkChordeiles minor
- Common RavenCorvus corax
- Cooper's HawkAccipiter cooperii
- Dark-eyed JuncoJunco hyemalis
- Downy WoodpeckerPicoides pubescens
- Eastern BluebirdSialia sialis
- Eastern KingbirdTyrannus tyrannus
- European StarlingSturnus vulgaris
- Golden-crowned KingletRegulus satrapa
- Gray CatbirdDumetella carolinensis
- Great Horned OwlBubo virginianus
- Hairy WoodpeckerPicoides villosus
- Long-eared OwlAsio otus
- Mourning DoveZenaida macroura
- Northern FlickerColaptes auratus
- Northern MockingbirdMimus polyglottos
Who uses this plant?
7CaterpillarsGenus host records with ranges including WV
Genus host records with ranges including WV · Calamagrostis
- Apamea sordensBordered Apamea, Rustic Shoulder-Knot
- Ctenucha virginicaVirginia Ctenucha
- Dargida diffusaWheat Head Armywotm Moth
- Leucania pseudargyriaFalse Wainscot
- Limochores mysticLong Dash
- Papaipema nebrisStalk Borer
- Photedes defectaNarrow-Winged Borer
0BeesSoutheastern regional records
0Specialist beesPollen specialists
2BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Ammophila
- Calcarius lapponicusLapland Longspur
- Plectrophenax nivalisSnow Bunting
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
- Flower color
- Green, purple or brown
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “July to early September” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Green, purple or brown” · Lady Bird Johnson Wildflower Center
- Height · “Up to about 4 feet” · Lady Bird Johnson Wildflower Center
- Life cycle · “Perennial” · Lady Bird Johnson Wildflower Center
- Light · “Partial shade; Full 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
Conservation status
| West Virginia rank | S3 |
|---|---|
| Global rank | G4 |
| WV 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
- NatureServe Explorer
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- West Virginia occurrence source
- 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