Radio 4 in Four - How do you differentiate weeds from other small plants? - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - How do you differentiate weeds from other small plants? - ÃÛÑ¿´«Ã½ Sounds
How do you differentiate weeds from other small plants?
It's often very difficult to work out what's a plant and what are actually tiny weeds.