How do you differentiate between walnuts and pecans in Spanish?

Question

It recently occurred to me that the Spanish *nuez* can be translated to English as both "walnut" and "pecan." Is the same word really used for both types of nuts? How would you specify which nut you're talking about when the difference is important (say, in a recipe)?

Answer 1

Nueces y pecanas estan considerados como frutos secos, extremadamente importantes para la salud.

Answer 2

The word "NUT" translates to "NUEZ" in Spanish, yet even though "PECANS" are also nuts, they translate to "PECANAS." Just like in English, they are both nuts but they have different names. For example; almonds are "almendras," peanuts are "manis," Brazilian nuts are "Nueces de Brasil," and "pistachios" are written the same but pronounced differently, just like "macadamias," they are also written the same way but pronounced a little different.