Catalogna Chicory - [Italian Dandelion, Cutting Chicory, C. intybus]
A mildly bitter chicory popular in Italy and widely available in the USA. There are also cultivars with red stems, and sometimes white ones will show red streaks. Chicory is generally used raw to pep up salads with fairly heavy dressings, but can also be cooked and will then be milder. The photo specimen was 16 inches long and weighed 13 ounces.

Chicory Root - [C. intybus var. sativum]
Chicory Root has long been an adulterant in coffee and sometimes a substitute. In East Germany Mischkaffee, a mixture of chicory, sugar beet and rye was used during a coffee shortage before the fall of the Berlin Wall.

Belgian Endive - [Witloof, French Endive, Cichorium intybus]
This very bitter chicory is pulled from the field and the green top cut off. Replanted in darkness the roots grow new leaves which lack green chlorophyll and are also much less bitter. This process explains the rather high price, but the flavor/texture combination just can't be found elsewhere and is essential to some recipes. The photo specimen was 5 inches long and weighed 4-3/4 ounces.

Belgian Endive - Red
Eager to entertain, California growers are now marketing a red variety of Belgian Endive. I found the taste indistinguishable from the regular white but the heads were smaller, looser and more expensive. Use it if the color is important to you. The photo specimens were 5 inches long and weighed 2-1/4 ounces each.

Curly Endive & Frisée - [Cichorium endivia]
A plant from India (Cichorium endivia) valued as a salad green. The Curly variety has fairly narrow leaves with ruffled edges while on the Frisée variety the leaf is both curly and very deeply cut making it quite frizzy. Of course there are many cultivars ranging from one extreme to the other.

Escarole - [Cichorium endivia]
Escarole is less bitter than most chicories and has broad light green leaves and a very flat head. It is commonly used as a salad green but more mature heads may be cooked as a green side dish. The photo specimen was 13 inches across and weighed 13 ounces.

Radicchio - [Cichorium intybus]
A moderately bitter chicory that looks like a head of lettuce in the field. In Italy they have also an all white version but in the US the spherical red and white Radicchio di Chioggia variety is most common but an elongated red and white Treviso variety that looks like a big red Belgian endive is also seen. This is a fairly expensive lettuce because of the production method. In the field they are green. To make them purely red and white they are pulled from the ground and put in water in a dark room until the chlorophyll has faded from lack of light. This is labor and capital intensive and a lot of outer leaves are lost in the process resulting in the high price. The larger of the photo specimens was 4 inches diameter and weighed 9-1/2 ounces. Details & Cooking.

Radicchio Treviso - [Cichorium intybus]
This is simply an elongated variety of the regular round Radicchio di Chioggia. It tastes the same and can be used the same unless leaf shape is important to your application, but it's likely to be even more expensive. The photo specimens was 7 inches long, 2-3/4 inches diameter and weighed 7 ounces. Details & Cooking.

Butter Lettuce - [Butterhead, Boston, Bib or Limestone]

These are very tender loose leaf lettuces often packed in individual plastic containers to protect them from damage. Of the two main varieties, Bib Lettuce is the smaller and considered the more flavorful, but Boston Lettuce is a suitable substitute. Packages I've seen in Southern California do not use either designation but simply call the contents "Butter Lettuce". The package often includes roots and a hydroponic growing matrix to extend shelf life.

Green Leaf Lettuce

Green Leaf is too tender to be a good industrial product but it's a very fine base for quality salads. Plenty of lettuce flavor with very moderate bitterness and good color. The photo specimen, squished a bit flat in shipping, as they always are, was 14 inches wide, 10 inches from stem to tip and weighed 13 ounces.

Iceberg Lettuce   -   [Crisphead lettuce]

Crisphead is actually the correct name, but nobody calls it that name. This head lettuce is the darling of the lettuce industry and the fast food chains. It's easy to handle and stands up well to processing and shipping abuse. The fast food people like it because it's easy to shred, bulks up a salad well and stays crisp and bulky for quite a while after shredding.

This lettuce was originally (and still is) grown in Salinas, California. It was put on trains, packed with ice and shipped as far as Maine year round, thus called "iceberg lettuce". It was very much welcomed during New England winters.

Crisphead lettuce contains a lot of water and is 1/5th or less nutritious as loose leaf lettuce. It has rather little lettuce flavor or bitterness but can be useful for recipes that call for lettuce wedges and such or where texture is more important than flavor or nutrition. It's also easy to store in the fridge compared to leaf lettuce. The photo specimen, a somewhat smallish one, was 5 inches diameter and weighed 1-1/3 pound.

Red Leaf Lettuce

Very similar to Green Leaf Lettuce except for the color. For taste and texture the two are interchangeable. The color is caused by anthocyanin pigments which are the same antioxidants found in red cabbage and red wine.

Romaine Lettuce - [Cos Lettuce]

The second most common lettuce in America after Iceberg and the sturdiest of the leaf lettuces. It's shape and stiffness make it relatively easy to handle but it does have quite a bit more lettuce flavor than iceberg does. It is called for by many recipes where the leaf shape and stiffness is desirable. The photo specimen was 13 inches high. It is often used as a foundation layer on a platter with the featured items placed over it.

Ruby Lettuce

Pretty much the same as Red Leaf Lettuce except for being all deep red with almost no green. For taste and texture the two are interchangeable. The color is caused by anthocyanin pigments which are the same antioxidants found in red cabbage and red wine.

Stem Lettuce   -   [Celtuce, Celery Lettuce, Asparagus Lettuce, Chinese Lettuce; Wosun, Woju (China); L. sativa var asparagina alt augustana, angustata]

This lettuce is grown mainly for its stem, which is sliced and used in stir fries. The flavor is fairly mild so it's usually paired with stronger flavored items. The photo specimens were about 16 inches long, 1-1/2 inches diameter and weighed about 10 ounces each. The form shown with a crown of leaves is how it is generally sold. The leaves are like Romaine leaves but tougher and stand up better to cooking. The Chinese do not eat raw greens for reasons you don't want to know.

Wild Lettuce

This is where it all came from, a wild plant with a bitter milky sap. When the plant matures it will "bolt", sending up a central stalk topped with a group of small dandelion-like flowers. The bitter sap is a mild opiate, particularly when the lettuce bolts.

While wild lettuce is much stronger, other loose-leaf lettuces have similar properties. Some years back I observed that the loose-leaf lettuce in a friend's garden had bolted. Connie remarked that it wasn't as good as before but they were still using it. They were also wondering why they were falling asleep right after their salad (served at the end of dinner in their household).

My pigeons used to rip into the wild lettuce, then go and flake out on the roof, often lying upside-down. Unfortunately they can't do that anymore because there are too many hawks now.