I don't know what you guys are talking about. This is totally a valid question. Sorry you had to lose so many points on this. He/she (sus?)'s also not wrong about it being self-explanitory.
Here are most of the Pokémon I think fit the description "tentacled" or "with vines":
Tentacool and Tentacruel, both the Jellyfish Pokémon. Their tentacles are located under their main bodies and are used for swimming, as it would be for an actual jellyfish.
Omanyte and Omastar, both the Spiral Pokèmon. Their tentacles are located under their eyes in front of their shells and used for eating and swimming, as it would be for an actual ammonite.
Frillish and Jellicent, both the floating Pokèmon. Their tentacles are located under their main bodies and are used for swimming, as it would be for an actual jellyfish.
Tangela and Tangrowth, both the Vine Pokémon. Their Vines are located all around their bodies and are used for camouflage and entangling opponents.
Bulbasaur, Ivysaur, and Venusaur, all the Seed Pokémon. Their vines are located inside of their bulbs or flowers, and they are used for grappling, climbing, and defense, as it would be for an actual frog/plant monster.
Snivy, Servine, and Serperior, all the regal Pokémon. Their vines are located under the yellow flaps on their necks and are used for handling objects to compensate for its short arms, as it would be for an actual green vine snake.
Bellsprout, Weepinbell, and Victreebel, all the Flower Pokémon. Their vines are located inside the leaves on either side for their main bodies, as it would be for an actual mutated pitcher plant with a soul.
Chikorita, Bayleef, and Meganium, all the leaf Pokémon. Their vines are located inside of the leaf on top of their head or inside of the leaf around their neck and used for absorbing sunlight and whipping opp, as it would be for an actual sauropod that can control plants.
Deoxys Normal form, Attack form, Defense form, and Speed form, the DNA Pokémon. Their tentacles are located where their arms would be and are used for attacking, defending, and transforming into human-like hands, as it would be for an actual... okay, whatever, deoxys isn't even based off anything.
Lileep and Cradily, both the Sea Lily Pokémon. Their tentacles are located in an opening on the top of Their heads and are used for clinging to rocks as well as catching and swallowing opponents.
Clobbopus and Grapploct, both the tantrum Pokémon. Their tentacles are located under their main bodies and are used for investigation and grappling, as it would be for an actual octopus.
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Toedscool and Toedscruel, both the Woodear Pokémon. Their tentacles are located under their main bodies and are used for mobilizing, as it would be for an actual sentient mushroom with wobbly legs. (sorry the pictures were to big because they're gen 9)
Octillery, the Jet Pokèmon. His tentacles are located under his main body and are used for traping and ensnaring its opponents, as it would be for an actual octopus.
Carnivine the Bug Catcher Pokèmon. Its vines are located under its main body and are used for climbing, walking, and constricting opponents, as it would be for an actual mutated sentient venus flytrap.
Ferrothorn, the Thorn Pod Pokèmon. Its tentacles are located above its main body and used for clinging to cave ceilings and absorbing nutrients from rocks, as it would be for an actual conscious, metallic, flattened durian.
Nihilego, the Parasite Pokèmon. Its tentacles are located under its main body and used for controlling its environment and latching onto its opponents, as it would be for an actual box jellyfish.
Zarude, the Rouge Monkey Pokémon. Its vines are located around its wrists and are used for swinging and attacking, as it would be for an actual rouge monkey.
Malamar, the Overturning Pokémon. Its tentacles are located on the top of it head and where the arms would be on a human-like Pokémon, and they are used for feeding, capturing opponents, swimming, and manipulation, as it would be for an actual intelligent squid. (I don't think inkay qualifies, but I didn't forget it).
Xurkitree, the Glowing Pokémon. Its tentacles are located where its arms and legs would be on a human-like Pokémon, and are used for conducting electricity and stability, as it would be for an actual conscious tree that can channel electricity.
Hope this helps, please tell me if I missed a few.
