每日一词学英语(123): pepper with

不从超市里买，而是改吃天然野生食品，有助于减少碳排放。与通常的观念不同，城里的绿地、灌木丛中有不少野生的可食用绿色植物。Contrary to popular opinion, urban 'wildernesses' such as scrubland, parks and hedgerows are peppered with edible greens. (From BBC, 4 January 2009: Foraging for food)

pepper sth with sth: [often passive] to include large numbers of sth in sth.
*He peppered his speech with jokes.

需要注意，只有确认采摘的植物可以食用再去吃，否则可能有害健康。