Thistles Thistles
Thistles are a branch of the huge Daisy family (Asteraceae (was Compositae)) along with Lettuce and Sunflowers. Thistles are a bitter, prickly lot and few are eaten, but the flower of one, the Artichoke, is greatly prized and the leaf stems of a near relative are also used in Mediterranean recipes.


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Safflower   -   [Carthamine (19th century); Carthamus tinctorius]
Seeds, Dried Flower

Safflower has been cultivated since the time of Ancient Egypt for oil, seeds and color, both for dyes and to color food. Today, the largest producers are India, the United States and Mexico, primarily for oil pressed from the seeds. Seeds are often used in bird seed mixes (where the photo specimens came from) because squirrels don't like them.

Safflower Oil:   Two varieties are grown for oil. One produces oil very high in polyunsaturated fats, the other with a little more monounsaturated fats. The variety with more monounsaturated fats predominates as an edible oil, the other is used for paints in place of linseed oil, particularly for white as it has no tint.

Cardoons   -   [Cardoni, Cardi, Chard (archaic), Artichoke Thistle; Cynara cardunculus]
Stalks

These large fleshy stems of a thistle closely related to the Globe Artichoke, are widely used as a vegetable in France and Italy. The taste is complex, interesting and artichoke-like - if you have developed a taste for slightly bitter vegetables (a worthwhile taste to develop).

Cardoons are best pre-cooked before using in recipes. Cut the stalks into lengths of about 3" to 4" and remove any outer leaves (very bitter) leaving only the most tender in the center. Put in a pot and add water to cover well. For a 3 pound bunch, add to the water 2 t of salt and 1/2 t citric acid or the juice of a lemon. Bring to a boil and simmer until tender, about 25 minutes. Drain, cool and refrigerate until needed.

Ecology:   Cardoons should not be planted except where they will be carefully controlled. They are an aggressive weed with wind dispersed seeds and have pushed out native flora in California, Australia, Argentina and elsewhere.

Globe Artichokes   -   [Cynara scolymus]

The edible artichoke is the flower bud of a thistle like plant native to the Mediterranean region, the buds being harvested when mature but not yet opened. It is not known if the Globe Artichoke existed in its current form during the classical Greek and Roman periods but it was definitely available by the 12th century. It may have been developed by selective breeding from the Cardoon, but that too is uncertain.

Essentially all fresh artichokes sold in the U.S. are grown in California, and the dominant Green Globe variety is grown almost entirely in the Salinas Valley on the central coast, production centering in Castroville and Moss Landing. This crop was originally planted by Italian families in the late 1800s and these families remain rather secretive about how to grow the Green Globe commercially.

Whole Artichoke Frost Damage / Wind Burn:   Artichokes hit by frost or wind will look a bit grungy. They may be sold at a lower price, or may be the only ones available at a certain time. Aside from appearance, they are generally undamaged - just pull of the tough outer leaves and trim the tips of the remaining leaves.

Health & Nutrition:   Artichokes have an antioxidant load considered among the highest for vegetables. They also contain compounds that contribute to healthy digestion (increasing bile flow, improving liver function and supporting beneficial gut bacteria) as well as reducing blood cholesterol and improving the HDL/LDL ratio. Artichoke extracts have been found useful for treating functional dyspepsia and irritable bowel syndrome. The beneficial components are found mostly in the flesh coating the leaves rather than in the heart.

Globe Artichokes - Varieties

Green Globe Artichoke

Whole and Split

The dominant artichoke in California, the Green Globe is grown in Monterey County on the central coast. The harvest begins in March and continues well into May with a smaller harvest in September and October. Sizes range from 18 count (jumbo) through 60 count, plus "large loose" (cocktail) and "small loose" (baby) sizes.

The Green Globe is a perennial crop and fairly expensive to produce so attempts to replace it with lower cost annual varieties growable in other parts of California are being made - so far with less than fully satisfactory results.

Baby Artichoke
Whole, Split, Peeled

These are not "baby" at all but mature buds that grow lower on the plant toward the end of the season and are used quite differently from the large artichokes. Most formerly went to marinated artichoke heart production but that business has been moved to Spain. "Babies" are consequently becoming more common in the markets and people are learning how to cook them.

Thornless Artichoke   -   [Imperial Star]
This "seed" variety was developed by the University of California (famous for durable but flavorless tomatoes) as an annual that would be less expensive to grow than the perennial Green Globe. It has met considerable consumer resistance because it is neither as tasty nor nearly as meaty as the Green Globe. Harvest is January through April and August through October. Sizes range from 18 count (jumbo) through 60 count.

Desert Globe Artichoke
A proprietary semi-thornless "seed artichoke" developed to counter consumer resistance to the Thornless Artichoke but also grown as an annual crop. It has better flavor and more meat than the Thornless but is still inferior to the Green Globe on both counts. Most production is in Southern California's Riverside and Ventura counties with harvest running from January through March. Sizes range from 18 count (jumbo) through 60 count, plus "large loose" (cocktail) and "small loose" (baby) sizes.

Big Heart Artichoke
Whole and Split A thornless variety with a wide base that's meatier than the Imperial Star thornless. Grown on the California Central Coast and in the Imperial Valley just north of the Mexican border it is harvested in all months except December, January and April. Sizes range from 8 count (huge) to 48 count. The leaves aren't as fleshy as those of the green globe, but the heart is substantial and has good flavor. The center of the stem can be scooped out with a spoon and eaten. The photo specimen was 4-1/2 inches diameter and weighed 1 pound 3-1/4 ounces.

Lyon Artichoke   -   [Gros Vert de Laon]
Whole and Split

These very spherical artichokes were developed in France, but are now grown also in California. They are very large, weighing up to two pounds each. They are usually shipped with substantial stem because the core of the stem is edible. The heart is quite large.

Euro Chokes
Heads w/Stems

A trade name for perennial varieties recently developed in France. These are now being grown in California and are shipped with stems as long as 16 inches. The stems contain a lot more edible flesh and less tough fiber than the typical California artichoke.   Photo © i0119.

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