1、 Blade difference

The leaves of Yinji wax are opposite, thick paper or thin leather, oval or oval, with milky white side rings at the edge. The Phnom Penh boxwood is leathery, obovate or oval, with yellow or white edges, yellow green and yellow stripes in the middle, yellow new leaves and green old leaves with white edges

2、 The difference between flowers

Yinji small wax flower panicle is terminal or axillary, the flower color is white, and the flowering period is from April to June every year. The Yellow poplars in Phnom Penh are cymes, with white green flowers and nearly oval petals. The flowering period is later and shorter than the former, from June to July