The origin and botany (classification, morphology and ecology) of sweet potato

anatomia anatomie anatomy biologia biologie biology botanica botanique botany classification convolvulaceae crops cultivos dicotiledoneas dicotyledons ecologia ecologia vegetal ecologie ecology economic plants hortalizas (plantas) industrial crops ipomoea ipomoea batatas methode methods plant anatomy plant ecology plantas plantas azucareras plantas feculentas plantas industriales plante plante de culture plante industrielle plante racine plants root crops root vegetables starch crops sugar crops tubiflorae vegetable crops