Christmasberry, Wolfberry, Goji

by Green Deane

in Antioxidants, Edible Raw, Fruits/Berries, Miscellaneous, Plants, Trees/Shrubs

Christmas, Wolf, Goji, They’re All Berries

It’s called the Christmasberry even though it fruits in April, and while it is one of several “Christmas Berries” this one happens to have a famous relative, the Goji berry of health food fame.

Wolfberries, Goji’s relative, photo by Green Deane

Botanically the Christmasberry is Lycium carolinianum (not to be confused with a couple of edible Crossopetalums also called Christmas Berry.) As for how Lycium carolinianum is pronounced is a bit of debate. Some say LIE-see-um, others lie-SEE-um. As the original word is from the Greek, λύκειον (LEE-kee-on) as in a Greek school we might argue the genus is more properly LEE-see-um.  Carolinianum means central North America and is said kar-row-linn-ee-AY-num.

For most of the year the Christmasberry is an unimpressive shrub that resembles from a distance a rosemary bush. But there are hints of more going on. It’s leaves are plump and the shrub is salt tolerant, preferring coastal or inland areas of high saline content. By April the fruit is quite attractive and a welcomed food for woodland creatures particularly birds. Technically the L. carolinianum here in Florida fruits all year but favor late fall and early winter. However, I have also found them in abundance in mid-spring.

Lycium carolinianum blossom

While the foliage would never give it away as a member of the Solanaceae clan the blossoms and berries can. The blossoms look very similar to other Solanums and the berries have an ornamental pepper look, if not in color then shape. The seeds are a familiar shape as well reminding one of small tomatoes or pepper seeds. Opinions on taste vary, from sweet and tomato-ish to famine food. All the ones I’ve eaten were on the sweet and juicy side but there is a bit of aromatic oil or flavor to them as well, nothing dramatic but definitely there.

While most foraging books ignore the L. carolinianum in their line up of edible Lyciums Dr. Fernando Chiang of the National University of Mexico confirms academically that the fruit is edible. Dr. Chiang is an expert on the genus and was consulted on the species for the publication of Florida Ethnobotany by Dr. Daniel Austin.  Chiang describes the berries of other Lyciums as “often edible.” At least one, L. acnistoides, found in Cuba, is toxic. In some species the berries and the leaves (cooked) are eaten. With some edible, one toxic for certain, and others unreported it is best to identify carefully.

In North America among the edibles species are, besides L. carolinianum,  L. andeersonii, L. fremontii, L. pallidum, and L. torrei. The leaves of the L. halimifolium are cooked and eaten in Eurasia as is the L. chinense. Best know, perhaps, is a Lycium closely related to the L. chinense, and that is the L. barbarum, also called the Goji (GO-gee) berry which oddly is naturalized in England. Also listed as edible Lycium ferocissimum, which is a pest in Australia. Its native L. australe was eaten by he Aboriginals.

Also called the Wolfberry, L. barbarum is know as a powerful antioxidant and credited with giving you energy, in and out of bed, better metabolism, improved immune system response, blood pressure regulation, cardiovascular health and slowing down aging. Animal research suggest it may be effective against cancer, inflammatory diseases, macular degeneration and glaucoma. It is consumed in the form of pills, juice, dried fruit, powder, teas and the seeds eaten.

The Goji berry is about 68% carbs, 12% proteins, 10% each of fiber and fat. A 100-gram serving is about 370 calories.  It has 11 essential dietary minerals and traces of 22 others; 18 amino acids, six essential vitamins, five unsaturated fats, and five carotenoids. Specifically it is high in calcium, potassium, iron, zinc, selenium, vitamin B2, Beta-carotene, and exceptionally high amounts of vitamin C. It’s also full of antioxidants via its pigment, which I would presume to be lycopene. If your local Lycium lives up to that, it would be quite a dietary addition.

Processed fruits of various species in the genus have also been used to treat diabetes, impotence, and to retard aging. One ingredient, Physalin, is extracted to treat Hepatitis B. Another chemical, Betaine, is taken by weightlifters to bulk up.

As a food Goji berrie (L. barbarum) are usually bought dried like raisins and are cooked before eaten. But the berries are also used to make a tea. Young Goji shoots and leaves are used as a cooked green. The one medical warning associated with Goji berries is they may increase the potency of drugs like Warfarin (making you bleed more easily.) Goji berries also contain atropine in low amounts.

Clearly you cannot assume your local Lycium is as all-around edible as the Goji is. But, identify and investigate.  One would presume many of them would have similar nutritional profiles.

Green Deane’s “Itemized” Plant Profile


Lycium carolinianum: Shrub to six feet, sprawling, spiny, small, succulent leaves. The four-petaled, somewhat tubular, lavender/blue flowers usually singular, red/orange berries, fleshy.


Fruits year around in Florida but favors mid-spring


Salt tolerant, coastal areas or inland salty ground


Ripe berries, fresh or dried, as fruit or tea.

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{ 5 comments… read them below or add one }

1 Jayson December 31, 2011 at 11:38

I learned about this from Green Deane in a class in Aug 2011 at Spruce Creek park, but it was just an unimpressive bush with no fruit. It is now December and there are berries on the bush. I ate a bunch of them and really like them. It tastes like tomato/pepper/sugar mixed together.


2 Zach June 24, 2013 at 10:35

Where exactly does the lycium plant grow throughout the Americas? I live in Michigan near Detroit…


3 Joe July 6, 2013 at 23:48

According to (banned site) the specific variety he’s showing grows down south. The other varieties he mentioned grow out west in deserts. So there’s no native wolfberries to Northern USA, but the Chinese wolfberries (goji berries) do well up north if you plant some yourself.

Anyway, I’m totally fascinated that America has it’s own goji berries. One day someone will get smart and dry these up and start selling them, just as was done with American ginseng/etc. It might even be “stronger” in Chinese medicine properties, the American “gojis.”

Sweet find. Wish we had them up here. Guess I’ll plant some Chinese ones in my yard…


4 Ronel June 22, 2014 at 07:23

Hi Deane
the Lycium ferocissimum that you list as a pest in Australia is native to South Africa where we know it as ‘snake berry’. It’s traditionally been eaten by San tribes centuries ago.


5 Mazer November 9, 2014 at 13:00

Here in California, Christmasberry is our local Toyon, once called Hollywood berry, it is why Hollywood (the city) is called that, Toyons graced the hills above the city in great numbers. Those hills are called the Hollywood Hills to this day


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