Question: Which family of the plant Tacca leontopetaloides is the common name for some plant species in the genus "Dioscorea" (family Dioscoreaceae) that form edible tubers?

Context paragraphs:
Dioscorea communis: Dioscorea communis (sometimes placed in the segregate genus "Tamus") is a species of flowering plant in the yam family Dioscoreaceae and is commonly known as black bryony, lady's-seal, and black bindweed.

Dioscorea elephantipes: Dioscorea elephantipes (elephant's foot or Hottentot bread; syn.  "Testudinaria elephantipes"), is a species of flowering plant in the genus "Dioscorea" of the family Dioscoreaceae, native to the dry interior of South Africa,

Tacca leontopetaloides: Tacca leontopetaloides is a species of flowering plant in the yam family Dioscoreaceae, that is native to tropical Africa, South Asia, Southeast Asia, northern Australia, New Guinea, Samoa, Micronesia, and Fiji.  As an important food source, it was intentionally taken to tropical Pacific Islands with early human migrations. Common names include Polynesian arrowroot, pia (Hawaii, French Polynesia, Niue, and Cook Islands), masoa (Samoa), mahoaʻ a (Tonga), yabia (Fiji) gapgap (Guam) and taka (Indonesia).

Tacca chantrieri: Tacca chantrieri, the black bat flower, is a species of flowering plant in the yam family Dioscoreaceae.  "Tacca chantrieri" is an unusual plant in that it has black flowers.  These flowers are somewhat bat-shaped, are up to 12 inches across, and have long 'whiskers' that can grow up to 28 inches.  There are ten species in the genus "Tacca".  One of these, "T. integrifolia", is commonly called the "white bat plant."  "T. integrifolia" is similar to "T. chantrieri", but has white bracts which are veined purple.  "T. integrifolia" is larger than "T. chantrieri", reaching up to four feet in height (almost twice the size of "T. chantrieri" at a height of 24"-36").

Dioscorea trifida: Dioscorea trifida is a species of flowering plant in the family Dioscoreaceae.  It is a species of yam (genus "Dioscorea").  It is native to the Caribbean and Central and South America.  Its many common names include Indian yam, cush-cush, and yampee.  It is called mapuey in Venezuela, inhame in Brazil, tabena and ñame in Colombia, sacha papa in Peru, and ñampi in Costa Rica.

Tuber: Tubers are enlarged structures in some plant species used as storage organs for nutrients.  They are used for the plant's perennation (survival of the winter or dry months), to provide energy and nutrients for regrowth during the next growing season, and as a means of asexual reproduction.  "Stem tubers" form from thickened rhizomes (underground stems) or stolons (horizontal connections between organisms).  Common plant species with stem tubers include potato and yam.  Some sources also treat modified lateral roots ("root tubers") under the definition; these are encountered in sweet potato, cassava, and dahlia.

Apios fortunei: Apios fortunei, commonly known as Hodo, Hodoimo, groundnut, or potatobean, is a tuber-forming member of the Bean family.  It is a native plant of Eastern China and Japan.  It is one of three species in the genus "Apios" that are known to produce edible tubers, although it has generally been considered an emergency, or famine food or medicinal plant.  A study done on the chemical composition of the tubers found that starch was the predominate carbohydrate, although smaller amounts of sucrose and glucose were found and almost no fructose was found.  In the wild, "Apios fortunei" is often found near brooks.  "Apios fortunei" is a perennial climbing vine.  The leaves are pinnate with 3-7 leaflets and are ovate or lanceolate in shape, 3–7 cm long.  Flowers have been variously described as whitish-green, light yellowish-green with a red purple edge on the wing petal, or sulphurous green with rosy wing petals.  The flowers form pseudoracemes or terminal panicles, 6–26 cm long.  The flowers are showy and have ornamental potential.  Legume fruits are linear, 7–8 cm long and 5–6 mm wide.

Chinese yam: Chinese yam ("Dioscorea polystachya"), also called cinnamon-vine, is a species of flowering plant in the yam family.  This perennial climbing bine native to China now grows throughout East Asia (Japan, Korea, Kuril Islands, Vietnam).  It is believed to have been introduced to Japan in the 17th century or earlier.  Introduced to the United States as early as the 19th century for culinary and cultural uses, it is now considered an invasive plant species.  The plant was introduced to Europe in the 19th century during the European Potato Failure, where cultivation continues to this day for the Asian food market.  The edible tubers, often called nagaimo or Chinese-potato, are cultivated largely in Asia and sometimes used in alternative medicine.  This species of yam is unique as the tubers can be eaten raw.

Dioscorea orangeana: Dioscorea orangeana, is a tuberous vining flowering plant in the genus "Dioscorea", endemic the Forêt d’Orangea near Antsiranana in Madagascar, from which it derives its name.  The tuber is possibly edible, and unlike most other "Dioscorea" species, the tuber has many finger-like lobes as opposed to a single tuber.  Because the plant is new to science and the possible harvesting by local populations, the conservation status of "Dioscorea orangeana" is of great concern.

Yam (vegetable): Yam is the common name for some plant species in the genus "Dioscorea" (family Dioscoreaceae) that form edible tubers. Yams are perennial herbaceous vines cultivated for the consumption of their starchy tubers in many temperate and subtropical world regions.  The tubers themselves are also called "yams", having numerous cultivars.

Supporting paragraphs: Tacca leontopetaloides Yam (vegetable)
Answer: Yam