used in "meiboku sendaihagi"
This rare kanji has no clear standalone meaning. It appears in the title of the kabuki play "Meiboku Sendaihagi" and is not used independently in modern Japanese. Treat its meaning as uncertain.
The historical origin of 蘒 is uncertain. It visually combines 艹 (grass) with 穐, but the exact development and original function are unclear.
Since the meaning is tied to a specific proper name, picture a stage set for the play "Meiboku Sendaihagi" with grass (艹) growing around a stylized prop (穐) to help recall the character's appearance.
For キ, imagine a key (キ) unlocking a treasure chest on the kabuki stage, where the play title includes this rare kanji.