Polygonaceae

299 species

A family containing buckwheat, rhubarb, sorrel, and dock—plants valued for grains and leafy vegetables.

Aconogonon phytolaccifolium

Antigonon leptopus

Coral creeper, Love vine

Edible: Tubers, Root, Leaves, Flowers

Atraphaxis manshurica

Edible: Roots, Stems, Leaves - tea

Atraphaxis spinosa

Shir-khecht shrub

Calligonum aphyllum - (Pall.)Gürke.

Edible: Fruit, Leaves, Shoots

Calligonum comosum

Edible: Flowers, Shoots, Fruit

Calligonum crinitum subsp. arabicum

Edible: Leaves, Flowers, Twigs - tea

Calligonum polygonoides

Edible: Leaves, Flowers, Fruit

Coccoloba ascendens

Masari, Bradilifi

Coccoloba barbadensis

Coccoloba belizensis

Belize seagrape

Coccoloba caracasana

Caracas sea grape

Coccoloba cordata

Coccoloba coronata

Coccoloba cruegeri

Coccoloba densifrons

Edible: Fruit, Seeds

Coccoloba diversifolia

Diverse leaf sea grape, Dove plum, Pigeon Plum

Coccoloba glaziovii

Coccoloba latifolia

Matora, Bradilifi, Uvero, Cuchape

Coccoloba liebmannii

Coccoloba manzinellensis

Coccoloba marginata

Margined seagrape

Coccoloba mosenii

Coccoloba ochreolata

Coccoloba ovata

Coccoloba plumieri

Coccoloba pubescens

Platter-leaf, Mountain grape

Coccoloba retusa

Coccoloba ruiziana

Analque pampero

Coccoloba uvifera

Coccoloba venosa

Calambre–a, Chicory-grape

Duma florulenta

Edible: Leaves, Stem

Spiny emex, Devil's thorn, Little jack

Edible: Leaves, Root, Stems

Eriogonum alatum

Winged buckwheat

Edible: Root, Seeds

Eriogonum angulosum

Anglestem buckwheat

Eriogonum atrorubens

Red Wild Buckwheat

Eriogonum baileyi

Bailey's buckwheat

Eriogonum cernuum

Nodding buckwheat

Eriogonum corymbosum

Crispleaf buckwheat

Edible: Leaves, Seeds

Eriogonum fasciculatum

Cailfornia buckwheat, Wild buckwheat

Edible: Flowers - tea

Eriogonum flavum

Yellow eriogonum

Eriogonum hookeri

Hooker's buckwheat

Eriogonum inflatum

American pipeweed, Desert trumpet

Edible: Leaves, Stem, Seeds

Eriogonum latifolium

Seaside buckwheat

Eriogonum longifolium

Longleaf buckwheat

Eriogonum microthecum

Slender Buckwheat, Alpine slender buckwheat, San Bernardino buckwheat, Johnston's buckwheat, Panamin

Eriogonum nudum var. oblongifolium

Naked buckwheat

Eriogonum nudum var. pubiflorum

Naked buckwheat, Hairy flowered buckwheat

Edible: Flowers

Eriogonum plumatella

Yucca buckwheat

Eriogonum pusillum

Edible: Seeds, Flowers

Eriogonum racemosum

Redroot buckwheat

Edible: Leaves, Stems

Eriogonum roseum

Eriogonum rotundifolium

Roundleaf buckwheat

Eriogonum wrightii

Eskemukerjea megacarpum

Fagopyrum acutatum

Edible: Leaves, Seeds

Fagopyrum dibotrys

Perennial buckwheat, Notch-seeded buckwheat

Edible: Leaves, Seeds, Vegetable, Root

Fagopyrum esculentum

Buckwheat, Japanese buckwheat, Silverhull buckwheat

Edible: Seeds, Leaves, Flowers

Fagopyrum gracilipes

Fagopyrum homotropicum

Fagopyrum megaspartanium

Edible: Flowers, Leaves

Fagopyrum pilus

Edible: Flowers, Leaves

Perennial Buckwheat

Edible: Leaves, Seed

Fagopyrum tataricum

Tartary buckwheat, Indian buckwheat

Edible: Leaves, Seeds, Flowers

Fallopia convolvulus

Black bindweed, Climbing buckwheat

Edible: Seeds, Leaves

Fallopia dumetorum

Climbing False Buckwheat, Desert Knotgrass

Edible: Leaves, Seeds

Fallopia japonica

Japanese knotweed, Mexican-bamboo

Edible: Leaves, Vegetable

Homalocladium platycladum

Edible: Leaves - tea

Koenigia mollis

Sikkim knotweed

Edible: Leaves, Seeds, Fruit, Stems

Muehlenbeckia adpressa - (Labill.)Meissn.

Muehlenbeckia astonii

Muehlenbeckia australis - (G.Forst.)Meissn.

Muehlenbeckia axillaris - (Hook.f.)Walp.

Sprawling wirevine

Muehlenbeckia chilensis

Muehlenbeckia complexa - (A.Cunn.)Meissn.

Maidenhair Vine

Muehlenbeckia hastulata

Quineo, Wirevine

Edible: Fruit, Seeds, Leaves

Muehlenbeckia platyclada

Ribbon-bush, Tapeworm plant

Muehlenbeckia tamnifolia

Oxygonum alatum

Salt of the tortoise

Edible: Leaves, Stems, Vegetable

Oxygonum atriplicifolium

Edible: Leaves, Stem, Vegetable

Oxygonum dregeanum

Oxygonum salicifolium

Edible: Leaves, Vegetable

Oxygonum sinuatum

Edible: Leaves, Fruit, Vegetable

Mountain sorrel

Edible: Leaves, Seeds

Persicaria acuminata

Persicaria alpina

Alaska wild rhubarb, Alpine knotweed

Edible: Drink, Leaves, Seeds, Stem

Persicaria amphibia

Water Knotweed, Willow grass, Amphibious bistort

Edible: Leaves, Seeds

Persicaria amplexicaulis

Mountain-fleece

Edible: Rhizomes - tea, Root, Leaves

Persicaria attenuata

Watersmart weed, Hairy knotweed

Edible: Leaves, Vegetable

Persicaria barbata

Smartweed, Joint weed, Knot weed

Edible: Leaves, Vegetable

Persicaria bistorta

Edible: Leaves, Seeds, Root, Rhizome, Flowers

Persicaria capitata

Eastern knotweed

Edible: Flowers, Leaves, Fruit

Persicaria chinensis

Chinese knotweed, Creeping smartweed

Edible: Leaves, Seeds, Leaves - tea, Flowers, Fruit

Persicaria chinensis var. ovalifolia

Persicaria decipiens

Slender Knotweed, Snake root

Edible: Leaves, Vegetable

Persicaria hydropiper

Water pepper, Marshpepper Smartweed

Edible: Leaves, Seeds, Leaves - spice, Leaves - tea

Persicaria lanigera

African persicaria

Persicaria lapathifolia

Pale Smartweed, Pale Knotweed

Edible: Leaves, Seeds

Persicaria macrophylla

Persicaria maculata

Lady’s thumb, Knotweed, Red Leg

Edible: Leaves, Seeds

Persicaria minor

Spotted Ladysthumb, Small water-pepper

Edible: Leaves, Seeds

Persicaria nepalensis

Nepalese Smartweed

Edible: Leaves, Seeds, Stems

Persicaria odorata

Vietnamese mint, Vietnamese coriander

Edible: Leaves, Herb

Persicaria orientalis

Prince’s Feathers, Prince’s Plume

Persicaria perfoliata

Asiatic tearthumb

Edible: Leaves, Seeds, Fruit, Stem tips, Leaves - tea

Persicaria pubescens

Water smartweed

Edible: Leaves, Seeds, Spice

Persicaria pulchra

Watersmart weed

Edible: Leaves, Leaves - flavouring

Persicaria punctata

Dotted Smartweed

Edible: Leaves, Seeds

Persicaria senegalensis

Silver snake root

Edible: Leaves, Tuber, Root, Vegetable

Persicaria serrulata

Slender Knotweed

Edible: Leaves, Seeds

Persicaria stagnina

Edible: Leaves, Caution, Root

Persicaria tinctoria

Edible: Leaves, Seeds

Persicaria virginiana

Edible: Leaves, Seeds

Persicaria vivipara

Alpine bistort, Alpine smartweed, Serpent grass, Swinegrass, Common bistort

Edible: Leaves, Root, Seeds, Flavouring, Bulblets, Fruit

Persicaria wallichii

Polygala myrtifolia

Myrtle leaf milkwort

Edible: Flowers - nectar

Polygonum affine

Edible: Seeds, Leaves

Polygonum alaskanum

Alaskan wild rhubarb

Edible: Leaves, Seeds, Stem

Polygonum alpinum

Edible: Leaves, Seeds

Polygonum amphibium f. terrestre

Polygonum arenastrum

Small-Leaved Knotweed, Oval-leaf knotweed

Polygonum argyrocoleon

Silversheath knotweed

Polygonum auriculatum

Edible: Fruit, Leaves

Polygonum aviculare

Knot Grass, Prostrate Knotweed, Creeping wireweed

Edible: Leaves, Seeds, Leaves - tea

Polygonum barbatum

Edible: Leaves, Shoots

Polygonum bellardii

Polygonum bistorta

Polygonum bistortoides

American bistort, Western bistort

Edible: Leaves, Root, Seeds

Polygonum bungeanum

Prickly Smartweed

Edible: Leaves, Seeds

Polygonum caespitosum

Tufted knotweed

Edible: Leaves, Vegetable

Polygonum ciliinerve

Polygonum coccineum

Water smartweed

Edible: Leaves, Seeds

Polygonum cognatum

Madmak, Knotgrass

Edible: Leaves, Stems

Polygonum conspicuum

Polygonum convolvulus

Polygonum crespidatum

Polygonum divaricatum

Edible: Leaves, Root, Seeds

Polygonum douglasii

Douglas Knotweed, Mountain knotweed

Edible: Leaves, Seeds

Polygonum dumetorum

Climbing false buckwheat

Edible: Leaves, Seed

Polygonum effusum

Polygonum equisetiforme

Edible: Leaves - flavouring

Polygonum esculentum

Polygonum fugax

Alpine Bistort, Alpine Knotweed, Serpent Grass

Edible: Leaves, Root, Seeds

Polygonum glabrum

Denseflower knotweed, Common marsh buckwheat

Edible: Leaves, Roots, Seeds, Stalks, Fruit

Polygonum guineense

Polygonum heterophyllum

Polygonum hydropiper

Smartweed, Marshpepper knotweed

Edible: Leaves, Seed

Polygonum japonicum

Japanese knotweed

Edible: Leaves, Root, Seeds, Stem

Polygonum japonicum var. conspicuum

Polygonum kawagoeanum

Polygonum lapathifolium

Curlytop Knotweed

Edible: Leaves, Seed

Polygonum limbatum

Mangalleta, Marang, Sukuripota

Polygonum limosum

Edible: Leaves, Seeds

Polygonum longisetum

Edible: Leaves, Seeds

Polygonum maackianum

Edible: Leaves, Seeds

Polygonum macrophyllum

Edible: Root, Seeds

Polygonum microcephalum

Edible: Leaves, Seeds

Polygonum minus

Pygmy smartweed

Edible: Leaves, Seed

Polygonum molle

Edible: Leaves, Seed, Shoots

Polygonum multiflorum

He Shou Wu, Tuber fleeceflower

Edible: Flowers, Leaves, Root, Seed

Polygonum muricatum

Polygonum nepalense

Nepalese smartweed

Edible: Leaves, Seed

Polygonum omerostromum

Edible: Leaves, Seeds

Polygonum orientale

Prince's Feather, Kiss me over the garden gate

Edible: Leaves, Seed, Shoots

Polygonum patulum

Polygonum perfoliatum

Edible: Leaves, Fruit

Polygonum persicaria

Red Leg, Spotted ladysthumb

Edible: Leaves, Seed, Shoots

Polygonum plebeium

Edible: Seeds, Leaves, Stems, Vegetable

Polygonum polycnemoides

Polygonum polymorphum

Edible: Leaves, Seeds

Polygonum polystachyum

Himalayan knotweed

Edible: Seeds, Flowers, Leaves

Polygonum posumbu

Edible: Shoots, Leaves

Polygonum pubescens

Edible: Leaves, Seed

Polygonum rigidum

Edible: Leaves, Seeds

Polygonum rumicifolium

Edible: Leaves, Seeds

Polygonum runcinatum

Edible: Leaves, Seeds

Polygonum runcinatum var. sinense

Edible: Flowers

Polygonum sachalinense

Giant knotweed, Sakhalin Knotweed, Sachaline

Edible: Leaves, Seeds

Polygonum salicifolium

Edible: Leaves, Seed

Polygonum senegalense

Edible: Leaves, Tuber, Root

Polygonum setosum

Polygonum sibiricum

Edible: Leaves, Seeds

Polygonum sinuatum

Polygonum taquetii

Edible: Leaves, Seeds

Polygonum taquettii

Edible: Leaves, Seed

Polygonum thunbergii

Edible: Leaves, Seeds, Shoots

Polygonum tinctorium

Edible: Leaves, Seed

Polygonum tomentosum

Polygonum tortuosum

Eastern knotweed

Edible: Leaves - tea, Stems, Shoots

Polygonum truellum

Edible: Leaves, Seeds

Polygonum verticillatum

Polygonum virginianum

Polygonum viviparum

Edible: Leaves, Root, Seed

Polygonum weyrichii

White Knotweed, Chinese knotweed

Edible: Leaves, Seeds

Polygonum yokusaianum

Edible: Leaves, Seeds

Poygonum chinense var. ovalifolium

Edible: Stems, Leaves

Reynoutria japonica

Japanese knotweed, Giant knotweed

Edible: Leaves, Shoots, Rhizomes, Roots, Tea

Reynoutria multiflora

Climbing knotweed, Flowery knotweed, Chinese cornbind

Edible: Flowers, Leaves, Root, Rhizome, Seeds

Reynoutria sachalinensis

Edible: Leaves, Stem

Rheum alexandrae

Himalayan Rhubarb

Rheum compactum

Rheum franzenbachii

Rheum likiangense

Rheum moorcroftianum

Edible: Leaf stalks

Rheum officinale

Chinese Rhubarb, Kelembak

Edible: Leaf stalk, Root, Seed

Rheum palaestinum

Palistinian rhubarb

Edible: Leaf stalks, Flowers, Roots - flavouring

Pieplant, Chinese rhubarb, Chinghai rhubarb

Edible: Leaf stalks, Rhizome, Root

Rheum palmatum tanguticum

Rheum rhabarbarum

Edible: Leaf stalks, Vegetable

Rheum rhaponticum

Currant-fruited rhubarb, Rawash

Edible: Flowers, Seeds, Leaves, Leaf stalks, Root - drink, Stems

Edible: Leaf stalks

Rheum spiciforme

Taturi, Archu, Lachu

Edible: Leaf stalks, Flowers, Leaves, Root

Rheum tataricum

Tartarian rhubarb

Edible: Leaf stalks, Flowers

Rheum webbianum

Himalayan rhubarb

Edible: Flower stalks, Leaves, Leaf stalks

Rheum wittrockii

Rheum x cultorum

Edible: Flowers, Stem

Rheum x hybridum

Edible: Stalks, Vegetable

Rheum × hybridum

Rumex abyssinicus

Spanish Rhubarb, Dock

Edible: Leaves, Stem, Roots - flavouring, Vegetable

Garden sorrel, Dock, Supermarket sorrel, Sheep's sorrel

Edible: Leaves, Flowers, Seeds, Vegetable,Stems

Rumex acetosella

Sheep Sorrel, Red Sorrel

Edible: Leaves, Seeds, Vegetable, Roots

Rumex acetosella subsp. acetoselloides

Rumex acetosella subsp. angiocarpus

Rumex alpestris

Maiden sorrel, Mountain dock

Alpine dock, Monk’s Rhubarb, Mountain rhubarb, Pyrenean sorrel

Edible: Leaves, Stem, Roots

Rumex angiocarpus

Common sheep sorrel

Rumex aquaticus

Red dock, Tu ta huang, Parelle

Edible: Leaves, Seed

Rumex arifolius

Rumex berlandieri

Rumex brasiliensis

Swamp dock, Slender dock

Edible: Leaves, Root - drink

Rumex bucephalophorus

Rumex chalepensis

Edible: Leaves, Roots

Rumex chrysocarpus

Pale dock, Amamastla dock

Rumex confertus

Rumex conglomeratus

Sharp dock, Clustered Dock

Rumex crispellus

Sour dock, Curled dock, Yellow dock

Edible: Leaves, Seeds, Stalks, Roots, Vegetable

Rumex crystallinus

Edible: Seeds, Leaves

Edible: Leaves, Fruit - young

Edible: Leaves, Seeds

Indian Sorrel, Toothed Dock

Rumex dentatus subsp. halacsyi

Rumex dregeanus subsp. montanus

Rumex graminifolius

Grass-leaf Sorrel

Nepali sorrel, Heartwing sorrel

Rumex hydrolapathum

Great water dock, Wild rhubarb

Edible: Leaves, Root

Rumex hymenosepalus

Tanner's dock, Canaigre rock

Edible: Leaves, Root, Seeds

Rumex japonicus

Edible: Leaves, Seeds

Rumex lanceolatus

Rumex lapponicus

Lapland mountain sorrel

Rumex longifolius

Edible: Leaves, Seeds

Rumex luxurians

Rumex maritimus

Edible: Leaves, Seeds

Rumex mexicanus

Edible: Leaves, Seeds

Rumex neglectus

Rumex nepalensis

Nepal dock, Field sorrel

Edible: Leaves, Vegetable, Roots

Edible: Leaves, Vegetable, Stems, Root - flavouring, Flower nectar

Rumex obtusifolius

Broad-leaf dock, Round-leaf Dock

Edible: Leaves, Vegetable, Seeds

Rumex obtusifolius subsp. subalpinus

Rumex occidentalis

Edible: Leaves, Seeds, Stems

Rumex papillaris

Rumex paraguayensis

Rumex patientia

Patience Dock, Spinach dock, Herb Patience

Edible: Leaves, Roots, Vegetable

Rumex patientia subsp. orientalis

Rumex paucifolius

Fewleaved dock, Alpine Sheep Sorrel

Edible: Leaves, Seeds, Stem

Fiddle dock, Red dock

Rumex ruwenzoriensis

Edible: Leaves, Stems

Rumex sagittatus

Rambling Dock, Climbing dock, Scrambling dock

Rumex salicifolius

Willow dock, Mexican Dock

Edible: Leaves, Seeds, Stem

Rumex salicifolius subsp. mexicanus

Edible: Leaves, Seeds

Rumex sanguineus

Red-veined dock, Bloodwort

French sorrel, Buckler-leaved sorrel

Edible: Leaves, Herb, Vegetable

Rumex scutatus subsp. induratus

Edible: Leaves, Shoots

Rumex simpliciflorus

Rumex steudelii

Rumex tenuifolius - (Waller.)A.Löve.

Common sheep sorrel

Rumex thyrsiflorus subsp. papillaris

Rumex thyrsoides

Rumex tingitanus

Edible: Leaves, Stem

Rumex trisetifer

Edible: Leaves, Vegetable

Rumex tuberosus subsp. creticus

Rumex tuberosus subsp. horizontalis

Edible: Leaves, Stem

Rumex usambarensis

Edible: Leaves, Stems, Vegetable

Sour greens, Veiny Dock, Winged dock, Wild begonia, Veined dock

Edible: Leaves, Stems

Rumex vesicarius

Ruby dock, Bladder Dock

Edible: Leaves, Vegetable, Fruit

Rumex violascens

Tovara virginiana var. filiformis

Jumpseed, Virginia knotweed