I think I’ve come up with the perfect solution to our groundskeeper’s good plant vs weed recognition problem. Flashcards. Very simple yet elegant as a solution. Flashcards work for kids in school. Math and alphabet flashcards have been used for decades. So maybe plant flashcards would work. I would take pictures of all the different plants growing around the lake and laminate the photos to plastic cards. I can draw a circle with a slash through the middle of photo of a weed and even type a description below the photo. Something like, “kill on sight” or maybe “wanted dead and decimated” for a weed and “diplomatic immunity” or “endangered species” for a keeper plant. This may slow down the weed eating process around here, but eventually hopefully the groundskeeper will get it and maybe some poor plant souls will be spared the weapon of plant destruction. Especially the ones I’ve paid money to put in the ground.
The flashcards could be put on a ring and hang from his belt for easy plant recognition access. The groundskeeper would walk along flip up and peruse the flashcard to scan the photos searching to determine if the plants are public enemy #1 or keepers. Who knows maybe flashcards will catch on for gardeners everywhere. I wonder if I should apply for a patent.
A woman's view of hunting...with men 
Some people will never see the difference in Boston Ivy and Posion Ivy. They only see green. Do you have an extra shock collar?
Do you have someone in mind to put the shock collar on? Yes we have a spare.
LOL – what a solution. Good luck 🙂