モルボルのつる [morbol no tsuru] ('malboro vine') or モルボルの触手 [morbol no shokushu] ('malboro tentacle') in Japanese.
Final Fantasy VII

Buy: - (sell: ? gil)
Drop: Malboro
Steal: Malboro
Effect: casts Bioga with 2,400 base dmg
Other: as 'M-Tentacles'
Final Fantasy XII
Buy: - (sell: 433 gil)
Use: Flametongue, Hi-Potion & Smelling Salts
Drop: Great Malboro, Malboro
Steal: Great Malboro, Malboro
Poach: Great Malboro, Malboro
Description: A thin, highly elastic vine. Easily cut, these are excellent for various crafts. Bundles of such vines are a common sight at market.
Revenant Wings
Buy: 3,000 (sell: 1,500 gil)
Shop: Material Shop, chapter 8 onwards after having obtained 500 materials
Use: Earthsaber, Elfin Bow, Pyroblade, Rune Blade
Obtain: mission 4-2 (harvest 11%, reward 25% with Goblin Pouch), 4-3 (treasure) 5-2 (harvest 11%), The Sword in the Shell (harvest 11%, reward 25% with Goblin Pouch), Cebe Summoning Melee (harvest 11%), Gugoza Falls Summoning Melee (harvest 11%), Yumir Qul Range Monster Melee (harvest 11%, reward 25% with Goblin Pouch)
Description: A slender, scissile tentacle. Usually shipped by the bunch.
Other: high-grade Braided Twine
Grimoire of the Rift

Buy: - (sell: 55 gil)
Use: Malbow, Nail Bow, Green Beret
Treasure: Pirate Attack x2 (once), Wanted: Floraxion (once), Open Wide (wandering monster)
Type: Flora, Rank: —
Description: This malboro tendril was dried in the sun, removing much of its scent. Used as a material in basket weaving and other handcrafts.
Final Fantasy Tactics S

Buy: - (sell: 50 gil)
Use: Anti-venom Ring
Obtain: Mechanic City Mogpeno/Mushroom Woodsea
Description: A somewhat uncommon plant
Category: Item