Polygonum

Etymology
From from  +  (though  has been suggested- the "knots" in "knotweed" are enlarged joints like knees, and it's certainly a prolific weed, so either derivation is plausible).

Usage notes
Sensu lato has frequently included the genera now in the tribe as, that is , ,  and  (which last has also been delimited as  and ).

Hypernyms

 * ,, - clades;  - order;  - family;  - subfamily;  - tribe;  - subtribe

Hyponyms

 * (common knotgrass) - type species; for other species see and

Coordinate terms

 * ,, , , , - genera