"Were your parents, like mine, proud of their pampas grass?" he posted in the CasualUK subreddit. It prompted one person to quip: "Don't forget to leave your keys in the bowl on your way in." ...

A USDA report cites a Lambrinos, 2006 study which found foraging animals like sheep and goats rarely chewed on pampas grasses. Pampas grass' insidiousness isn't limited to the loss of biodiversity.

Pictures of the Pampas grass on social media are thought ... has led to "droves" of people picking the plant which grows wild near a beach. The grass, near Littlehaven Beach in South Shields ...

This very confusion was evident on Reddit this week when a user posted an innocent-looking photo of his parents' front garden, asking: "Were your parents, like mine, proud of their pampas grass?" ...