(1) Yes, we can find a plant in our neighborhood that has a long but weak stem.
(2) One such plant is grapes whose stem is thin, long, and weak. It climbs up with the help of a wall or rope. It is called a climber.
(3) Money plant also has a long but weak stem. Money plant is classified as a climber, i.e. the plant with a weak stem that cannot stand upright and climb with the help of a support.