life as a tree is fucking BRUTAL. ok no they don't actually eat each other (well, not until they've been broken down and digested by microorganisms first) but competition is FIERCE. sunlight and water are finite resources. survival rates are dismal. a tree can release a million seeds in a lifetime and have only one offspring live to maturity. some species evolved ways of stealing sunlight from trees who got there first, bidding their time as a sapling then shooting out from under older canopies to hog as as much light as possible. next-door neighbors? fuck em, let em starve.
then you get shit like epiphytes that decided to just grow on top of other plants. strangler fig vines, for instance, which decided well fuck, im just gonna cling to this tree trunk and let it do the support work. maybe entangle our roots and envelope my host completely over time. oopsie my host died? that's ok I'll just cling to its corpse for eternity
equally horrifying is the honeysuckle, which preys on young trees boa-constrictor style, squeezing the life out of saplings, which grow with permanent deformities before dying prematurely (makes for a neat walking stick though)
then you get out and proud parasites like mistletoe who are happy to attach themselves to tree canopies and suck their blood extract water and nutrients. so yeah some plants do eat each other actually. gives ya some perspective on the old christmas tradition of hunting mistletoe with guns (yes that's a thing, shooting them down out of trees like squirrels. yes, unlike squirrels they deserve it). as for the romance angle, who doesn't want to kiss a lover beneath the dying corpse of a parasitic trophy kill? sexy as heck.
in conclusion, PLANTS ARE VIOLENT AS FUCK, and that's not even getting into the eternal chemical warfare they are forced to wage against insects, fungi, microbes and other enemies.
one day soon the forests will turn on us, and when that day comes I'm cheerfully betraying humanity and skipping away to cross enemy lines 🫡