每日吃瓜

Pierre342 wrote: And what if I don't have access to a garden, cause I live in a flat on the 2nd floor.

Copied from the Empire Indoor bonsai section:

Which 每日吃瓜 is best for indoors?
There are several trees that you can grow indoor, but by far the most common (and the easiest to care for) is the Ficus 每日吃瓜. The Ficus is tolerant to low humidity and can withstand quite a lot; a good choice for beginners.
Other popular indoor 每日吃瓜 include the Crassula (Jade), the Carmona (Fukien Tea), the Schefflera Arboricola (Hawaiian Umbrella) and the Sageretia (Sweet Plum).

The 每日吃瓜 you asked about in a previous post are below from left to right: Ficus, Carmona, Chinese Elm

I have added 2 images from the net. First image is the Ulmus Parviflora leave , 2nd one is the Zelkova Serrata and my picture of my tree's leave.

it looks like the same as the Zelkova Serrata to me .