In article , Franz Heymann
writes
I challenge you to design an experiment which would prove that a plant
has any emotional reactions. The concept is an emergent phenomenon
which can only be described at all in the case of higher animals.

I have quoted one in this thread in a response to Sacha.

FWIW, I see plants as the highest of beings. Partly because they were
around long before animals, and partly because whereas animals,
including humans, are totally dependent upon plants, plant-life has no
need of animals - even of gardeners.
--
Alan & Joan Gould - North Lincs.