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Smooth Pigweed

Amaranthus hybridus

68
Strong

Native to Louisiana (estimated). How scores work Is it native here?

Profile 71%

Height
Up to about 8 feet
Light
Sun
Will it fit your yard?

At a glance

Life cycle
Annual

Not yet recorded · Spread · Soil · Leaves · Bloom

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 44 Louisiana parishes.

Ecological relationships

Who uses this plant?

What these records mean

42CaterpillarsGenus host records with ranges including LA

Genus host records with ranges including LA · Amaranthus

  • Achyra rantalisGarden Webworm Moth
  • Agrotis ipsilonIpsilon Dart, Black Cutworm, Greasy Cutworm
  • Amyna strictaEight-Spot Moth
  • Anavitrinella pampinariaCommon Gray, Cranberry Spanworm
  • Argyrotaenia ivanaIvana Leafroller Moth
  • Dicymolomia julianalisJulia's Dicymolomia
  • Disclisioprocta stellataSomber Carpet, Bougainvillea Looper
  • Epiblema otiosanaBidens Borer Moth
  • Estigmene acreaSalt Marsh Moth, Acrea Moth
  • Feltia repletaReplete Dart
Show all 42
  • Feltia subterraneaSubterranean Dart, Granulate Cutworm
  • Gesta martialisMottled Duskywing
  • Hahncappsia mancalisCommon Hahncappsia
  • Helicoverpa zeaCorn Earworm Moth
  • Herpetogramma bipunctalisSouthern Beet Webworm, Two-Spotted Herpetogramma
  • Hyles lineataWhite-Lined Sphinx
  • Hymenia perspectalisSpotted Beet Webworm
  • Melanochroia chephiseWhite-Tipped Black Moth, Snowbush Spanworm
  • Mocis latipesSmall Mocis, Striped Grass Looper
  • Mythimna unipunctaArmyworm Moth, White Speck
  • Neogalea suniaLantana Stick Caterpillar, Catabena Moth
  • Papaipema nebrisStalk Borer
  • Pholisora catullusCommon Sootywing
  • Platynota flavedanaBlack-Shaded Platynota
  • Platynota rostranaOmnivorous Platynota
  • Platynota stultanaOmnivorous Leafroller
  • Psara obscuralisObscure Psara Moth
  • Rhectocraspeda periusalisEggplant Webworm
  • Scythris trivinctellaBanded Scythris
  • Sparganothis sulfureanaSparganothis Fruitworm Moth, Sulfur Leafroller, False Yellow-Head
  • Spilosoma virginicaVirginian Tiger Moth, Yellow Woolybear Moth, Yellow Bear
  • Spodoptera albulaWhite-Spotted Armyworm, Gray-Streaked Armyworm
  • Spodoptera dolichosSweetpotato Armyworm, Dolichos Armyworm, Large Cotton Armyworm
  • Spodoptera eridaniaSouthern Armyworm Moth
  • Spodoptera frugiperdaFall Armyworm Moth
  • Spodoptera ornithogalliYellow-Striped Armyworm Moth, Cotton Cutworm
  • Spoladea recurvalisHawaiian Beet Webworm
  • Staphylus hayhurstiiHayhurst's Scallopwing, Scalloped Sooty Wing, Scalloped Sootywing
  • Udea rubigalisCelery Leaftier
  • Virbia aurantiacaOrange Virbia, Orange Holomelina
  • Helvibotys helvialis
  • Paralobesia vernoniana
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
4BeesSoutheastern regional records

Southeastern regional records · Amaranthus

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
39BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Acanthis flammeaCommon Redpoll
  • Agelaius phoeniceusRed-winged Blackbird
  • Agelaius tricolorTricolored Blackbird
  • Alectoris chukarChukar
  • Anthus rubescensAmerican Pipit
  • Calcarius lapponicusLapland Longspur
  • Calcarius ornatusChestnut-collared Longspur
  • Callipepla californicaCalifornia Quail
  • Columba liviaRock Pigeon
  • Columbina passerinaCommon Ground Dove
Show all 39
  • Euphagus cyanocephalusBrewer's Blackbird
  • Haemorhous mexicanusHouse Finch
  • Ixoreus naeviusVaried Thrush
  • Junco hyemalisDark-eyed Junco
  • Meleagris gallopavoWild Turkey
  • Melospiza melodiaSong Sparrow
  • Melozone crissalisCalifornia Towhee
  • Molothrus aterBrown-headed Cowbird
  • Oreortyx pictusMountain Quail
  • Perdix perdixGray Partridge
  • Pheucticus melanocephalusBlack-headed Grosbeak
  • Pinicola enucleatorPine Grosbeak
  • Pipilo maculatusSpotted Towhee
  • Plectrophenax nivalisSnow Bunting
  • Pooecetes gramineusVesper Sparrow
  • Rhynchophanes mccowniiMcCown's Longspur
  • Sialia sialisEastern Bluebird
  • Spizella breweriBrewer's Sparrow
  • Spizella passerinaChipping Sparrow
  • Spizelloides arboreaAmerican Tree Sparrow
  • Turdus migratoriusAmerican Robin
  • Tympanuchus pallidicinctusLesser Prairie-Chicken
  • Tyrannus tyrannusEastern Kingbird
  • Vireo belliiBell's Vireo
  • Vireo olivaceusRed-eyed Vireo
  • Zenaida asiaticaWhite-winged Dove
  • Zenaida macrouraMourning Dove
  • Zonotrichia atricapillaGolden-crowned Sparrow
  • Zonotrichia leucophrysWhite-crowned Sparrow
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
Amaranthaceae
Flower color
Green

What its natural habitat tells you

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

Growing sources and scope
Also known as

Slim Amaranth; Slim Pigweed; Smooth Amaranth

Conservation status

Louisiana rankSNR
Global rankG5?
LA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources