Top-right
艹 here is the upper portion of the right-side phonetic
㒼 (mán). It sits as a 'grass cap' visually but historically belongs to a fused phonetic stack — together with
两 below it spells out the 'covered' sound. Recognising
艹 as the top of this phonetic block helps you read
瞒 (mán, deceive) and
蹒 (pán, stagger) the same way.