Knowra Polygonaceae Polygonaceae Polygonaceae is a family of flowering plants that includes knotweeds, docks, buckwheats, and rhubarbs. Many members have swollen stem nodes and small flowers.
Caryophyllales : An order of flowering plants that includes Polygonaceae, cacti, and carnations. Polygonaceae belongs to this order, whose members share evolutionary ancestry despite varied forms.
Buckwheat : A crop plant cultivated for its edible seeds, despite not being a cereal grass. Buckwheat species in Polygonaceae supply groats, flour, and nectar for honey.
Fagopyrum : A genus of flowering plants that includes common and Tartary buckwheat. This crop-bearing genus is one of Polygonaceae’s best-known lineages.
Common buckwheat : An annual crop species cultivated for its edible seeds and flowers attractive to pollinators. It is the principal cultivated buckwheat and a familiar example of Polygonaceae agriculture.
Caryophyllaceae : A flowering-plant family that includes carnations, chickweeds, and pinks. Its often opposite leaves and different floral structures help distinguish it from Polygonaceae.
Ocrea : A sheath formed by fused stipules that surrounds the stem above a leaf node. This distinctive structure occurs in many Polygonaceae and helps identify the family.
Rhubarb : A group of perennial plants cultivated for their tart, edible leaf stalks. Rhubarbs are cultivated Polygonaceae, though their leaves contain toxic oxalic acid.
Rumex : A genus of flowering plants that includes docks and sorrels. Its species represent a large, ecologically varied branch of Polygonaceae.
Rhubarb (plant) : A perennial plant whose fleshy leaf stalks are used as food. Garden rhubarb makes the family’s edible diversity visible in cultivation.
Chenopodiaceae : A former plant family whose genera are now largely classified within Amaranthaceae. Its species can resemble Polygonaceae in habitat and inconspicuous flowers but lack the characteristic ocrea.
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