Bill who putters writes:

"The idea that plants basically have nerves ‹ a conclusion that grows
out of hard-to-interpret observations of electrical activity in plant
tissue ‹ has ignited a thunderstorm of its own among plant scientists in
recent years.

Article in question is a semantic game.

Here they are attempting to stretch the meaning of the phrase
"swarm intelligence".

Plants reacting to the environment is in no way intelligence as the
word is commonly understood.

The Wikipedia article on "Swarm Intelligence":

http://en.wikipedia.org/wiki/Swarm_intelligence

shows exactly how devoid of intelligence the concept of
swarm intelligence is. The article talks about the swarm
intelligence of drops of water as a river forms a river bed.

As far as nerves, again the article is playing semantic games:

The idea that plants basically have nerves — a conclusion that grows out
of hard-to-interpret observations of electrical activity in plant tissue
— has ignited a thunderstorm of its own among plant scientists in recent
years.

As most of us know, plants don't have a nervous system.

Electrical activity occurs in wires, water, rocks.

Nothing to see here.