薯蓣 Chinese yam
（重定向自Dioscorea opposita）
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![In addition to larger underground tubers, Chinese yam also produces smaller bulbils (aerial tubers) produced where leaves join the stem. These are also edible but not considered as palatable.](/Images/godic/202501/09/Dioscorea_polystachya_UGA54219772750.jpg")
![Dioscorea polystachya, Chinese yam](/Images/godic/202501/09/Dioscorea_polystachya_UGA23071292750.jpg")
![Tororo blackbean udon from Tamba (丹波の黒豆とろろうどん)](/Images/godic/202501/09/TororoUdon2750.jpg")
薯蓣（学名：Dioscorea polystachya）又称为「蒣」，是薯蓣科薯蓣属的一种植物。
薯蓣的块根称为山药，冬季采挖。原产地位于淮河附近因而得名淮山。山药易栽培，最适宜在黄沙土生长，中国已有几百年的栽培山药历史。食用山药生熟亦可，连皮更佳。
Dioscorea opposita
中文百科
英语百科
Dioscorea opposita
Dioscorea opposita is an obsolete synonym of two species of yams:
- Chinese yam (Dioscorea polystachya), a widely cultivated yam native to China.
- Dioscorea oppositifolia, a yam native to the Indian subcontinent.
- variolar aphonia
- variolar blepharitis
- variolar blepharitis angulars
- variolar carbuncle
- variolar choking
- variolar crust
- variolar edema
- variolar eruption
- Variolaria amara
- Variolaria amera
- variolaric acid
- variolarioid
- variolar macule
- variolar nebula
- variolar oral erosion
- variolar pruritus
- variolar unconsciousness
- variolar virus
- variola siliquosa
- variola sine eruptione
- variola, smallpox
- Variola suilla
- variolate
- variolation bovine
- variolation