Purple Lotus

Purple Lotus is a Herb that can be gathered by Herbalists.

Purple Lotus is one of the four types of Lotus and the most common of the four types. Visually, it appears to be a purple flower and a little bit of white/green near the ground.

Source
Purple Lotus can typically be found around troll, night elf and titan ruins in Kalimdor and the Eastern Kingdoms. Sometimes when picking a Purple Lotus, you will also find a Wildvine. Requires 210 Herbalism to gather. Found in the zones:
 * Tanaris 28.6%
 * Azshara 19.1%
 * Stranglethorn Vale 18.0%
 * The Hinterlands 14.9%
 * Feralas 12.2%
 * Badlands 4.7%
 * Ashenvale 1.6%
 * Dire Maul 0.6%
 * Zul'Gurub 0.4%

Purple Lotus as an Ingredient
Purple Lotus is used in the following recipes:

Alchemy

 * Magic Resistance Potion
 * Elixir of Greater Water Breathing
 * Wildvine Potion
 * Philosopher's Stone
 * Dreamless Sleep Potion
 * Elixir of Dream Vision

Tailoring

 * Cenarion Herb Bag

Enchanting

 * Lesser Mana Oil
 * Brilliant Mana Oil

Inscription

 * Violet Pigment
 * Ruby Pigment