bamboo basket, weeder, rake
蓧 centers on a tool or container made from bamboo: a basket, a weeder, or a rake. The common thread is a bamboo implement used for gathering or working the soil.
蓧 combines 艹 (grass/plant) with 條, which likely contributes the sound. The character refers to bamboo tools, consistent with the plant radical.
The top 艹 suggests plant material, and the bottom 條 looks like a long, slender shape. Picture a bamboo basket or rake made from woven grass and bamboo strips.
For チョウ, imagine a bamboo basket named Chou (pronounced 'choh') used for weeding: Chou -> チョウ, and the basket holds the weeds.