Oddish in depth
The mandrake that screams
Its origin lies in the mandrake, the plant whose root sometimes resembles a human figure and which was said to let out a deadly shriek when pulled from the ground. The entry about the terrifying screams is not a joke thrown in at random; it is the reference. Its round body leans more towards a root vegetable—radish, turnip, onion—and the leaves on its head are shaped like those of a snake plant.
The two names take different paths. The Japanese name, ナゾノクサ, is read as 謎の草 (nazo no kusa), “mysterious weed,” leaving the creature in the realm of the unexplained. The English name, Oddish, combines odd with radish, so it keeps both the radish and the weirdness. Spanish kept the English name unchanged.
Red yes, Blue no
In Kanto, it was never a Pokémon you could find just anywhere. In the first generation, it appeared on Routes 5, 6, 7, 12 through 15, 24, and 25, but only in one of the two versions: Red had it, Blue did not. The split was repeated in FireRed versus LeafGreen, and again in Pokémon: Let’s Go, Pikachu! versus Pokémon: Let’s Go, Eevee!.
What occupied its slot in the other version was Bellsprout, and the parallel is almost laboratory-perfect: Grass and Poison, first generation, three stages, evolution at the same level 21, and a Leaf Stone for the final step. The stats are what separate the two. Bellsprout puts 75 Attack and 70 Special Attack on top of 35 and 30 defenses; the Weed Pokémon drops to 50 and 75 but raises its back line to 55 and 65. One hits before it dies; the other makes it to the second turn.
The second-generation split
During the first generation, the line ended at Vileplume, full stop. The second added the Sun Stone and with it an alternative ending from Gloom, Bellossom, which not only distributes its stats differently but also loses the Poison typing and becomes pure Grass. It is one of the few cases where the branch changes the resulting type chart.
The figures say different things about each path. Vileplume reaches 110 Special Attack, the best in the group, and 75 HP with 85 and 90 in its defenses. Bellossom sacrifices 20 points of that attack, 90 versus 110, and reallocates them to durability: 95 Defense and 100 Special Defense. Both share 50 Speed, and both retain Chlorophyll.
A weed that watches the moon
What is striking about its current movepool is how closely it lines up with the lunar side of its description. Moonblast at level 28 and Moonlight at 36 are the two Fairy-type moves it learns, and neither has anything to do with being a poisonous plant: they fit the creature that only moves when the moon comes out and grows in its light. Moonlight also restores less when the weather is worse, so the same entry brings together a move that wants sun—Solar Beam, Synthesis, Chlorophyll—and another that does not mind the sun either but is hindered by rain.
At level 40, it gets Petal Dance, with 120 power and the drawback of chaining turns together and ending up confused. It is the last move in its movepool and also the hardest to see, because you have to leave it unevolved for the nineteen levels after 21.