Procris repens
Procris repens is a species of flowering plant in the nettle family, Urticaceae. It is commonly known as watermelon begonia or sisik naga, although the latter name may also refer various Pyrrosia species.
Procris repens is an interesting specimen to demonstrate the metamorphosis of chloroplasts to amyloplasts if studied with a microscope.
Under its synonym Elatostema repens it has won the Royal Horticultural Society's Award of Garden Merit. E. repens var. pulchrum has also won the award.