Purple Sandgrass
Triplasis purpurea
Found in dunes, maritime dry grasslands, open sandy areas. Weakley, Flora of the Southeastern United States (2025), Florida edition What its natural habitat tells you
Native to Florida. How scores work Is it native here?
Profile 82%
- Height
- Up to about 3 feet
- Light
- Full sun
- Soil moisture
- Dry to wet

At a glance
- Life cycle
- Annual
Not yet recorded · Spread · Leaves · Bloom
Bloom: NC species account not read yet.
Spread and leaves: no source found yet.
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 50 Florida counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Open sand of beaches, dunes and the hollows between them.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Florida. Shared habitat, not food. 93 animals.
- Common TernSterna hirundo
- Common YellowthroatGeothlypis trichas
- Cooper's HawkAccipiter cooperii
- DunlinCalidris alpina
- Eastern Brown PelicanPelecanus occidentalis carolinensis
- Eastern Screech-owlMegascops asio
- Eastern TowheePipilo erythrophthalmus
- Eurasian Collared-doveStreptopelia decaocto
- European StarlingSturnus vulgaris
- Field SparrowSpizella pusilla
- Fish CrowCorvus ossifragus
- Forster's TernSterna forsteri
- Grasshopper SparrowAmmodramus savannarum
- Gray KingbirdTyrannus dominicensis
- Great Black-backed GullLarus marinus
- Great EgretArdea alba
- Great Horned OwlBubo virginianus
- Greater YellowlegsTringa melanoleuca
- Gull-billed TernGelochelidon nilotica
- Henslow's SparrowAmmodramus henslowii
- Hooded MerganserLophodytes cucullatus
- Horned LarkEremophila alpestris
- KilldeerCharadrius vociferus
- Lapland LongspurCalcarius lapponicus
Who uses this plant?
2BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Triplasis
- 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 or brown
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Green or brown” · Lady Bird Johnson Wildflower Center
- Height · “Up to about 3 feet” · Lady Bird Johnson Wildflower Center
- Life cycle · “Annual” · Lady Bird Johnson Wildflower Center
- Light · “Full sun (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Soil · “Dry; Moist; Wet (documented habitat)” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
Also known as
Purple Sand Grass
Conservation status
| Florida rank | SNR |
|---|---|
| Global rank | G4G5 |
| FL 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
- Atlas of Florida Plants
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Florida 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

























