Yeah. They express their pain by making that weird, sad, kinda creepy wailing noise when the wind is blowing.

Some plants bleed, some weep, some issue warnings to other plants.

No brain, no pain.

Is this question your way of justifying eating pizza and KFC all the time?

Plants respond to stimuli, like heat, light, touch, etc. They move parts of themselves towards things that stimulate them positively, and away from things that don’t, under certain circumstances. They release chemicals in self-defence. They communicate events like insect attack to other plants. If they sense pain or discomfort, it probably doesn’t resemble the sensations we feel as pain or discomfort, but we don’t know what exactly it “feels” like to them.

So… maybe?

Here’s link that explains this in detail.

Some bleed.

When I was little the neighbor had these weird blue, bell shaped flowers in the front yard. While waiting for the bus I stuck my nose in a flower to smell it. The petals shut on my nose, and also on my finger when I poked that in there too.
Some obviously have defense mechanism, whether pain is felt or not.

resisting the obvious punchline here

Are we going for vagina jokes now?

Yes they do and they also sing, dance and carry on philosophical discussions, but only when nobody is watching.

@LostInParadise as do toys and pet animals.

They can deliver pain, so they MUST feel pain. Why would they defend themselves except for fear of pain and death?

no