阝

阝 is a character used in Kangxi writing which serves as the combining form of two distinct radicals, distinguished by whether it is on the left or right of a character. It is the combining form of Radical 170, 阜, when used on the left of a character, as in 阪, and of Radical 163, 邑, when used on the right of a character, as in 部.

In Unicode ⻖ (U+2ED6) is listed as CJK RADICAL MOUND TWO (meaning 阜 - left) and ⻏ (U+2ECF) is listed as CJK RADICAL CITY (meaning 邑 - right). Most, but not all, fonts render them as almost identical. Perhaps for this reason 阝 (U+961D), listed as CJK UNIFIED IDEOGRAPH-961D, is usually used to represent both.