A succulent looks sadder than you because its heavy leaves droop more than your heavy heart
A weeping willow
You may be weeping but you're much fatter than a willow that's one reason the weeping willow is sadder than you
Unless you live in Arizona a cactus is sadder than you. If you do live in Arizona, I'm sorry
This dying plant
See?! You could look this sad but you don't. You just look really really close to it.