This is a small plant. The one I took photo is about 1 ft high. It can grow up to 3 ft on good soil.
There is another variety, look very similar but shorter and it flowers. That is not recommended and not good.
The leaves of this particular plant can be grown into a plant.
The leaves taste sour and slightly bitter not extreme.
For those having kidney stones diagnosed, this may help. Need to take daily by crushing the leaves and drink without boiling. Continue 30 days. You will be surprised.
Source: Adu (35 yrs, f, Miao, on 28 July 2021).