Wheat and zunin do not constitute kilayim one with the other. Barley and oats, spelt and rye, or beans and sapir (a type of bean), or purkdan and tofah (two similar types of beans), or white beans and kidney beans, do not constitute kilayim one with the other.

Cucumbers and melons do not constitute kilayim one with the other. Rabbi Judah said they do constitute kilayim. Lettuce and wild lettuce, endives and wild endives, leek and wild leek, coriander and wild coriander, or mustard and Egyptian mustard, Egyptian gourd and the bitter gourd, or Egyptian beans and carob shaped beans do not constitute kilayim one with the other.

As for trees: the pear and the crustumenian pear, the medlar and azarolus, do not constitute kilayim one with the other. The apple and the crab-apple, or the peach and almond, or the jujube and rimin, even though they are similar one to the other, they nevertheless constitute kilayim one with the other.

The radish and the cabbage turnip, mustard and charlock mustard, Greek gourd with Egyptian gourd or [Greek gourd] with bitter gourd, even though they are similar one to the other, are nevertheless kilayim one with the other.

A wolf and a dog, a wild dog and a fox, a goat and a deer, a gazelle and a ewe-lamb, a horse and a mule, or a mule and a donkey, a donkey and a wild donkey, even though they are similar one to the other, constitute nevertheless, kilayim one with the other.

They may not graft from one tree to another, or from one vegetable to another, or from a tree to a vegetable, or from a vegetable to a tree. Rabbi Judah permits it from a vegetable to a tree.

They may not plant vegetables in a trunk of a sycamore tree. They may not graft rue on white cassia, since that is [grafting] a vegetable on a tree. They may not plant a young fig-shoot in sea squill so that it might provide shade for it. They may not insert a vine branch into a melon, in order that the latter might shoot its moisture to the former, since that is [grafting] a tree on a vegetable. They may not place gourd seed into anchusa for the purpose of preserving it (the gourd seed), since that is [grafting] a vegetable on another vegetable.

One who buries turnips or radishes beneath a vine, if some of their leaves are uncovered, he need not have fear [of having transgressed] kilayim, or the sabbatical year, or tithes and they may also be pulled up on Shabbat. One who plants a [grain of] wheat and [a grain of] barley at one time, behold this is kilayim. Rabbi Judah says: it is not kilayim unless there are two grains of wheat and two grains of barley, or one grain of wheat and two grains of barley, or a grain of wheat, a grain of barley and a grain of spelt.