What is the meaning of Wild_buckwheat?

Any plant in the genus Eriogonum of wild buckwheats, in the knotweed or buckwheat family (Polygonaceae), as is true buckwheat (Fagopyrum esculentum).

Other plants related to or resembling buckwheat:

1. Many other plants of the family Polygonaceae;
2. Tartary buckwheat (Fagopyrum tataricum), cultivated in the Himalayas;
3. tall buckwheat (Fagopyrum cymosum, syns. Fagopyrum acutatum, Fagopyrum dibotrys), cultivated for medicinal use and as animal fodder;
4. Many plants of genus Eriogonum, of North America;
5. Black bindweed, of species Fallopia convolvulus.

Many other plants of the family Polygonaceae;

Tartary buckwheat (Fagopyrum tataricum), cultivated in the Himalayas;

tall buckwheat (Fagopyrum cymosum, syns. Fagopyrum acutatum, Fagopyrum dibotrys), cultivated for medicinal use and as animal fodder;

Many plants of genus Eriogonum, of North America;

Black bindweed, of species Fallopia convolvulus.

Source: wiktionary.org