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
Blue–green distinction in language that meant "marigold" a small and in fact yellow flower. The other word, "blu", refers to a darker shade of blue, and like many similar words across many European languages, derives ultimately from Germanic (see also: Italian "blu"). There is a separate word for green, "gjelbër", which derives from the Latin "galbinus", which originally meant "yellow"; the original Latin word for green on the other hand, "viridis", is the source of the Albanian word for "yellow", "verdhë". There are separate words for green ("zaļš") and blue ("zils") in Latvian. Both "zils" and "zaļš" stem from the same Proto-Indo-European word for