Publication: Sp. Pl. 1: 333. 1753.
selected vouchers: WTU
Notes: Introduced from Eurasia.
FNA5: "Some North American specimens of Rumex patientia appear to belong to subsp. orientalis (= R. orientalis Bernhardi 1830, not Campderá 1819; R. lonaczevskii), which differs from subsp. patientia in having larger inner tepals (6-10 × 8-10 mm, not 4-8 × 4-8 mm).
A predominantly Asian variety with three tubercles sometimes is recognized as subsp. callosus (Fr. Schmidt ex Maximowicz) Rechinger f. [= var. callosus Fr. Schmidt ex Maximowicz; Rumex callosus (Fr. Schmidt ex Maximowicz) Rechinger f.]. However, the distribution of infraspecific taxa of R. patientia in North America has not been studied in detail."