Yup. The crawling Kangkong plant or Water Spinach or Swamp Cabbage is a very nutritional food and wildly grows everywhere in the tropics near bodies of water.
Kang Kong is a highly nutritious plant with high levels of protein, calcium, iron, potassium, & vitamins A B & C. A valuable addition to the diet.
It looks like this when cooked with spices and coconut milk. Delicious!
You can also just boil or steam the Kangkong, leaf and stem.