The Ochu (オチュー, Ochū?, lit. Otyugh), also known as Ocho or Ho-chu, is a recurring creature in the Final Fantasy series, first appearing in the original Final Fantasy. Its appearance is usually that of a large plant with either two or four thorny arms and a ring of flower petals that somewhat resemble a skirt. It commonly uses Sleep and Poison-based attacks. While typically acting as the basis of its own family of enemies, it has on occasion appeared as a variant of the Malboro.
Appearances
Final Fantasy
The Ochu appears as an enemy encountered in rivers throughout the world while using the Canoe, as well as within the Citadel of Trials.
Final Fantasy VII
The Ho-chu appears as an enemy encountered in the Gold Saucer Battle Square, being one of two enemies exclusive to the Square along with the Tonberry. There exists code in the game indicating the Ho-chu was intended to be encountered in the Ancient Forest as a special encounter, since it is not possible to escape from that encounter.
Before Crisis -Final Fantasy VII-
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Final Fantasy VIII
The Ochu appears as an enemy encountered in the forests of Yaulny Canyon, Obel Lake, Grandidi Forest, and Hawkwind Plains, as well as on the Island Closest to Heaven.
Final Fantasy IX
The Ochu appears as an enemy encountered in the Conde Petie Mountain Path.
Final Fantasy X
The Ochu appears as an enemy encountered along the Moonflow. Its normal attack can inflict Poison, while its Ochu Dance can inflict Darkness, Slow, Silence and Confuse on the entire party.
Final Fantasy X-2
The Ochu returns as an enemy encountered on the Thunder Plains and within Via Infinito. It takes 12 kills to Oversoul an Ochu-type fiend.
Final Fantasy X-2: Last Mission
The Ochu returns as a boss encountered on the 20th floor of Iutycyr Tower.
Final Fantasy XI
The Ochu appears as a morbol enemy encountered in Rolanberry Fields. The rafflesia family more closely resemble the traditional Ochu, and its model is used as the basis of the Final Fantasy XIV Ochu.
Final Fantasy XIII
The Ochu appears as an enemy encountered in the Archylte Steppe and Faultwarrens, and is also the target of the Cie'th Stone mission "Seeing Stars." It is accompanied by Microchu in battle, and can summon more of its minions using Seed Dispersal.
Final Fantasy XIII-2
The Ochu returns as an optional boss encountered in the Archylte Steppe -Year Unknown-. It appears with several Microchus. It can be fought repeatedly by returning to the Steppe and resetting the weather.
Final Fantasy XIV
The Ochu appears as a family of seedkin, found predominantly in the Black Shroud. The common Ochu can be encountered in the Larkscall region of the East Shroud, as well as during 
First Impressions, 
Idle Hands, and 
All Vine and No Popotoes. The Chichu are a family of seedkin based on the Final Fantasy XIII Ochu, and is named after and believed by some naturalists to be related to the Eorzean Ochu.
Justice Monsters Five
This section in Justice Monsters Five is empty or needs to be expanded. You can help the Final Fantasy Wiki by expanding it.Final Fantasy Tactics
The Ochu appears as a member of the Malboro species.
Final Fantasy Tactics Advance
The Ochu appears as a malboro encountered during the mission "Foreign Fiend." Unlike other appearances, it isn't a unique enemy, but rather a high-level malboro simply named "Ochu". According to the mission description, they are not native to Ivalice.
Final Fantasy Crystal Chronicles
The Ochu appears as an enemy encountered in the Mushroom Forest and Moschet Manor.
Final Fantasy Crystal Chronicles: My Life as a King
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Dissidia Final Fantasy Opera Omnia
The Ochu from Final Fantasy XIII appears as a boss.
Pictlogica Final Fantasy
The Ochu from Final Fantasy XIII appears as an enemy.
Final Fantasy All the Bravest
The Final Fantasy XIII Ochu appears as an enemy encountered on the Archylte Steppe. It uses Feeler and drops the Dragon Whisker.
Final Fantasy Record Keeper
The Ochu from Final Fantasy IX, X-2, and XIII appear. Notably, the X-2 Ochu uses the Lord Ochu sprite, which has a different color scheme than the Ochu's appearance in X-2.
Final Fantasy Brave Exvius
The Ochu appears as a recurring boss based on its Final Fantasy XIII appearance encountered in the Latius Woods, Mystic Woods, and the Colosseum. It also appears in the trial "March of the Beasts" and the events "Memories from the Aquapolis," "Time for Revenge," and "Latius Woods - Past."
War of the Visions: Final Fantasy Brave Exvius
This section about Summon magic in War of the Visions: Final Fantasy Brave Exvius is empty or needs to be expanded. You can help the Final Fantasy Wiki by expanding it.Mobius Final Fantasy
The Ochu appears as a wind-elemental boss based on its Final Fantasy XIII appearance. It can be obtained as a Ranger ability card, granting the Windfang ability.
Final Fantasy Portal App
The Ochu from Final Fantasy VIII appears as a Triple Triad card with 5/3/2/2 values.
Etymology
"Ochu" comes from Dungeons & Dragons; specifically, it is the otyugh. The name in Japanese (and transliterations) comes from the pronunciation; it is pronounced with a short O and T (practically to a ch), making the pronunciation close to "o-chuugh". "オチュー" is the closest the katakana system can get to representing the sound without using compound katakana pronunciations not natively found in Japanese.