Polygonaceae is a plant family in the Plantae kingdom, order Caryophyllales, class Magnoliopsida. The family contains 349 accepted species worldwide. Some species in this family are toxic — exercise caution when handling unknown specimens.
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Eriogonum alatum Torr.
Eriogonum alatum Torr., or winged buckwheat, is a buckwheat species native to pa…
Nemacaulis denudata Nutt.
Nemacaulis denudata, the only species in its genus, is a delicate annual herb fo…
Persicaria glabra (Willd.) M.Gómez
Persicaria glabra is a medium annual herb similar to two related Persicaria spec…
Eriogonum nortonii Greene
Eriogonum nortonii Greene is a small plant with often red stems, wavy leaves, an…
Polygonella macrophylla Small
Polygonella macrophylla Small is a rare perennial herb or subshrub native to scr…
Rumex hastatulus Baldwin ex Elliott
Rumex hastatulus is a dioecious edible-in-small-doses North American herb studie…
⚠️ Poisonous
Eriogonum elongatum Benth.
Eriogonum elongatum is a pH-tolerant perennial herb native to California that su…
Rumex stenophyllus Ledeb.
Rumex stenophyllus, the narrow-leaf dock, is a perennial knotweed species native…
Bistorta vacciniifolia (Wall. ex Meisn.) Greene
Bistorta vacciniifolia is a clay-tolerant flowering plant from Tibet and the Him…
Chorizanthe breweri S.Watson
Chorizanthe breweri, also called Brewer's spineflower, is a rare endemic Califor…
Persicaria perfoliata (L.) H.Gross
Persicaria perfoliata is an annual plant with distinct ochreas, edible blue frui…
Eriogonum shockleyi S.Watson
Eriogonum, or wild buckwheat, is a species-rich North American flowering plant g…
Polygonaceae plants belong to the Caryophyllales order in the Plantae kingdom. Every flower hangs from a pedicel, and usually has six tepals. For instant identification, use the iNature app — AI-powered and works offline.
Polygonaceae is classified in the order Caryophyllales, class Magnoliopsida, phylum Tracheophyta. Distinctive circular, cup-shaped leafy structures called ochreas surround the stem at regular intervals.
Yes, some Polygonaceae species are toxic or poisonous. Always exercise caution with unknown specimens. View poisonous Polygonaceae species or browse the full poisonous species guide.
Sources: GBIF, iNaturalist, Wikipedia · Disclaimer
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