Arrowhead

Arrowhead is a plant in Plants vs. Zombies 2.

Origins
Arrowhead is based on the Sagittaria, also known as arrowhead, more specifically, arrowhead root.

Overview
Arrowhead shoots mini-arrows at zombies, dealing 20 DPS. Unlike most plant, Arrowhead can only be planted on another plant. Up to three Arrowheads can be planted per plant.

Almanac
Arrowhead is ze littlest plant. His only purpose is supporting other plants in both offensive and defensive.

Plant Food
Both the Arrowheads and the selected plant will activate their Plant Food ability. Arrowhead will temporarily shoot powered mini-arrows that deal 50 DPS in 10 seconds.

Trivia

 * Zombies will have to eat Arrowheads first. Similarly, Gargantuars will have to smash Arrowheads instead of the plant it supported, referencing Arrowhead's defensive purpose.
 * Explorer/Torchlight Zombie, Mecha-Football Zombie, ect... can destroy both the Arrowheads and the supported plant.
 * He is the second plant to be based on the arrowhead plant, with the first being Alarm Arrowhead.
 * Arrowheads will fly around the supported plant in-game.