Not the same thing.

Purple potatoes belong to the sweet potato herbaceous plants, potato flesh is purple to dark purple, so also known as black potatoes, purple heart sweet potatoes or purple flesh sweet potatoes. Purple sweet potato is a special variety of sweet potato type, both food, economic crops and medicinal crops, in addition to the composition and function of ordinary sweet potato, but also has a variety of physiological effects, is an important raw material for food, medicine, chemical industry, light industry, textile and other industries.

The taro is a cultivated species in the genus Tu Luaner of the family Leguminosae, perennial herbs, do annual cultivation. Taro's edible part of the globular tuber, the appearance of small potatoes, diameter generally 2 ~ 4 cm, skin yellow-brown, its meat like potatoes, but tastes like chestnuts, sweet and aromatic, after eating the aftertaste is not exhaustive, so the name taro. Taro is rich in nutrients.

Nutritional value

1, purple potatoes are rich in dietary fiber, starch, vitamins, trace elements (selenium, iron, calcium, potassium, etc.) and anthocyanosides, glycoproteins, carotenoids, dehydroepiandrosterone (steroidal) ketones and a variety of other functional factors, with antioxidant, antitumor, memory, prevention of high blood pressure, repair of the myocardium, reduce liver dysfunction, enhance body function. It has the functions of antioxidant, anti-tumor, memory enhancement, hypertension prevention, heart muscle repair, liver dysfunction reduction, and immunity enhancement.

2, taro nutrient-rich, starch, protein and mineral content are high. According to reports, each 100g taro contains about 21g starch, crude protein 3. 5g, calcium content of about 52mg, selenium 2. 2mg, vitamin C about 7mg.

The taro cooking methods, burning, frying, stewing can be used with its chicken, pork stew, burning, and its flavor is not greasy, crunchy and not rotten. It has always been the New Year's festivals, celebrations and feasts on the necessary superior dishes.

Reference: Baidu Encyclopedia-Purple Potato

Reference: Baidu Encyclopedia-Sweet Potato