Rhubarb cultivars have gained the Royal Horticultural Society’s Award of Garden Merit:- "Rhubarb" originally comes from the two Greek words for rhubarb. "Rheon" from the Persian "rewend", later became the Latin word "rheum", meaning rhubarb. The other Greek word is "rha", an ancient name for the Volga River in Russian, where rhubarb was cultivated, having been introduced there from China via the Silk Road. In medieval Latin, "rheon" and "rha" became "rheum barbarum", literally "foreign rhubarb" or "strange rhubarb", and evolved later into "rheubarbarum". Most likely, the English word "rhubarb" entered the language via the French word "rhubarbe" brought over by
Vulgar Latin vocabulary or evolved forms of "tōtus" (originally "entire") for a similar meaning; Occitan/Portuguese/Spanish " cada" 'each, every', "tudo"/"todo" in Portuguese, "todo" in Spanish, "tot" in Catalan, "tout" in French and "tot" in Romanian. The plural "tutti" in Italian means "all, every" and can overlap in meaning with "ogni" ("ogni giorno" and "tutti i giorni" both mean "every day"), and the singular "tutto" still means "entire" as well as "all". Sometimes a Classical Latin word appears in a Romance language alongside the equivalent Vulgar Latin word: classical "caput", "head", and vulgar "testa" (originally "pot") in Italian, French and Catalan. In Romanian "cap"