Here is one example of a misinformed Food writer Twinkle's Kitchen and another from Heifer International (whom you would think would know better)
|3 kinds of Lettuce, leaf, bibb and romaine|
Mach (aka corn salad, Lewiston cornsalad, lamb's lettuce, fetticus, field salad, mâche, feldsalat, nut lettuce and rapunzel.) is Valerianella locusta, a completely different genus than lettuce. It is a nice low growing green that is one of the first greens to come up in our yards and garden in the late winter/early spring. It is jammed packed with a lot of nutrients. But it ain't lettuce, despite some of the common names implying such.
Frisee is an endive which hails from the chicory family and a gain not a lettuce, though it is green, leafy and generally eaten raw in salads
Arugula, Eruca sativa (aka rocket, roquette) is another non lettuce salad green. Arugula is a brassica and is closely related to mustard, cabbage, and broccoli. We grow a lot of arugula on our farm and it is one of our all tome favorite salad greens (and we grow some of the best arugula on the planet, why? I don't know but we seem to have an affinity for the stuff)
If food writers, Chefs and other culinary celebs want to write about lettuce I suggest they do some homework and write about lettuce and not other salad greens. There are over 400 different varieties of lettuce grown these days (though most people only know about leaf, iceberg, romaine and bibb). Some of my favorites include the lollos, an Italian frilly bibb like lettuce that is a stunning red and green, Amish deer tongue that looks like a cross between bibb and romaine but is neither. Cracoviensis, one of the most ancient lettuces and likely one of the parents of romaine.
These people do are doing the public a disservice by calling things that are not lettuce, lettuce. it is much like an automotive writer calling a pick-up truck a sedan, they two are not the same, though both do have similarities. it doe show me how disconnected people are from the food they eat when supposed experts get such simple things wrong. And when people read what these folks write they assume the "experts" are correct. Sadly with food and garden writing all too often the "experts" are dead wrong and and that is no good for the salad eating public and it is truly vexing to us lettuce and salad green growers who have to explain over and over again to our customers who read and/or hear this misinformation that arugula, et. al. are not lettuces at all, though they are lovely salad greens in their own right.
Food writers, Chefs and the rest of you salad experts try to get this right from now on. Go out and learn about the wonderful world of lettuces and quit calling all salad greens lettuce. Thank you in advance