An Alphabet of Kales (almost).

Some of the Portuguese brassica packets that I acquired years ago are hard to translate but, I found this:

..... as another Portuguese I’ll give you some notes on Portuguese brassicas. Portuguese speakers will often confuse cabbage, kale (or collard greens) and Portuguese cabbage when speaking in English because all follow under the term “couve” in Portuguese, but Portuguese cabbage and Portuguese kale are not the same. Portuguese kale (“couve-galega”) is a variety of kale. It has both frilly and smooth forms, and people don’t really distinguish between the two – in some places you often see the growing side by side in the same field, and both can come in the same batch of seed. This is the one you have there, and the one usually used for “caldo verde”. Regular cabbages are called “couve-repolho” (smooth leaves), “couve-lombarda” (frilled leaves) and “couve-roxa” (red cabbage), but were traditionally less cultivated. Portuguese cabbage (“couve-portuguesa”, “couve-penca” and “couve-tronchuda”) falls in between cabbage and kale, and is considered a distinct cultivar from either of the two. It remains short, and sometimes form a small sprout on top, but never form a big, round cabbage. “Couve-portuguesa” or “couve-tronchuda” is a particular landrace of the cultivar (the one traditionally eaten with boiled codfish and potatos on Christmas eve), and includes Tronchuda Beirã. Other varieties include “Penca de Chaves”, “Penca de Mirandela”, and a few other.
https://backyardlarder.co.uk/2014/09/portuguese-kale/