Green smoothie with orange, banana and kangkong (also known as water spinach, river spinach, or water morning glory)

On 2012-12-16 Sunday, at about 6.40 pm, I made a green smoothie with an orange, a medium banana and about 120 grams of kangkong (also known as water spinach, river spinach, or water morning glory) and 200 ml of plain boiled water. Total about 700 ml. Taste OK.