C. ichangensis × C. grandis - Ichang lemon CRC 1215
Synonyms: Shangjuan
This plant is a hybrid of Ichang papeda and pomelo, it comes from East Asia. It forms a shrub or small tree that is often thorny. The grapefruit-like fruit can be yellow or green depending on the stage of ripeness. They are also similar in size to a grapefruit.
The difference from others found so far is in:
leaf: length: 20 cm width: 8 cm + round scratches on the leaves