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Bitter Dock

Rumex obtusifolius

Found in pastures, barnyards, disturbed areas. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

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Not native

Not native to Alabama. How scores work Is it native here?

Profile 71%

Height
2–4 feet
Light
Partial shade, Full sun
Soil moisture
Dry to wet

At a glance

Life cycle
Perennial
Bloom
April to June
Fruiting season
June to August

Not yet recorded · Spread · Leaves

Recorded in 13 Alabama counties.

Natural habitats

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

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

41CaterpillarsGenus host records with ranges including AL

Genus host records with ranges including AL · Rumex

  • Achyra rantalisGarden Webworm Moth
  • Agnorisma badinodisPale-Banded Dart
  • Agrotis gladiariaSwordsman Dart, Clay-Backed Cut-Worm
  • Anavitrinella pampinariaCommon Gray, Cranberry Spanworm
  • Apantesis argeArge Tiger Moth
  • Apantesis naisNais Tiger Moth
  • Argyrogramma verrucaGolden Looper
  • Calothysanis amaturariaCross-Lined Wave
  • Chionodes discoocellellaEyeringed Chionodes
  • Chloridea virescensTobacco Budworm Moth
Show all 41
  • Chlorochlamys chloroleucariaBlackberry Looper Moth
  • Dypterygia rozmaniAmerican Bird's-Wing
  • Estigmene acreaSalt Marsh Moth, Acrea Moth
  • Eupithecia miserulataCommon Eupithacia, Common Pug
  • Feltia jaculiferaDingy Cutworm
  • Hahncappsia mancalisCommon Hahncappsia
  • Hyles lineataWhite-Lined Sphinx
  • Lacinipolia renigeraBristly Ground Cat, Bristly Cutworm Moth, Kidney Spotted "Mamestra"
  • Leuconycta lepidulaMarble-Green Jaspidia, Marble-Green Leuconycta
  • Mythimna unipunctaArmyworm Moth, White Speck
  • Nymphalis antiopaMourning Cloak
  • Ochropleura implectaAmerican Flame-Shouldered Dart
  • Olethreutes fasciatanaBanded Olethreutes
  • Orthodes majusculaRustic Quaker, Rustic Groundcat
  • Orthonama obstipataThe Gem
  • Papaipema baptisiaeWild Indigo Borer, Indigo Stem Borer
  • Papaipema marginidensBrick-Red Borer
  • Papaipema nebrisStalk Borer
  • Phlogophora irisOlive Angle Shades
  • Platynota stultanaOmnivorous Leafroller
  • Pseudeustrotia carneolaPink-Barred Lithacodia, Pink-Barred Pseudeustrotia
  • Sparganothis sulfureanaSparganothis Fruitworm Moth, Sulfur Leafroller, False Yellow-Head
  • Spilosoma virginicaVirginian Tiger Moth, Yellow Woolybear Moth, Yellow Bear
  • Spodoptera eridaniaSouthern Armyworm Moth
  • Spodoptera frugiperdaFall Armyworm Moth
  • Spodoptera ornithogalliYellow-Striped Armyworm Moth, Cotton Cutworm
  • Strymon melinusGray Hairstreak
  • Sunira bicoloragoBicolored Sallow
  • Thyridopteryx ephemeraeformisEvergreen Bagworm Moth
  • Trichoplusia niNi Moth, Cabbage Looper Moth
  • Xestia dolosaGreater Black-Letter Dart, Greater Spotted Cutworm
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
—BeesSoutheastern regional records
—Specialist beesPollen specialists
26BirdsRecorded genus food-resource interactions; not a state feeding claim

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

  • Alectoris chukarChukar
  • Anthus rubescensAmerican Pipit
  • Aythya affinisLesser Scaup
  • Bonasa umbellusRuffed Grouse
  • Callipepla californicaCalifornia Quail
  • Columbina passerinaCommon Ground Dove
  • Dendragapus obscurusDusky Grouse
  • Haemorhous mexicanusHouse Finch
  • Junco hyemalisDark-eyed Junco
  • Lagopus leucuraWhite-tailed Ptarmigan
Show all 26
  • Meleagris gallopavoWild Turkey
  • Melospiza melodiaSong Sparrow
  • Melozone crissalisCalifornia Towhee
  • Oreortyx pictusMountain Quail
  • Pheucticus melanocephalusBlack-headed Grosbeak
  • Pinicola enucleatorPine Grosbeak
  • Pipilo maculatusSpotted Towhee
  • Plectrophenax nivalisSnow Bunting
  • Sialia mexicanaWestern Bluebird
  • Sialia sialisEastern Bluebird
  • Spinus psaltriaLesser Goldfinch
  • Spizella passerinaChipping Sparrow
  • Spizella pusillaField Sparrow
  • Turdus migratoriusAmerican Robin
  • 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

Growing and identification

Plant details

Family
Polygonaceae
Fruit begins
June
Fruit ends
August

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

Growing sources and scope
Also known as

Broad Leaf Dock

Conservation status

Alabama rankSNA
Global rankGNR
AL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

Native alternatives

Find natives for your garden

Sources