It usually transforms as 㔾 when appearing at the bottom of a Chinese character.

In the Kangxi Dictionary, there are 40 characters (out of 49,030) to be found under this radical.

卩 is also the 21st indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China, with 㔾 being its associated indexing component.

In Unihan database, 㔾 is indexed radical 26 + 1 stroke (3 strokes in total), with the extra stroke unspecified.

[1] Traditionally, this character or component consists of only two strokes (𠃌乚).