Foraging Miner’s Lettuce, America’s Gift to Salad


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Miner\'s lettuce growing in my garden.
Photo by Holly A. Heyser

Here in Northern California, our spring comes early. By late February, everything that’s not concrete is green, greener than anything you can imagine. Ireland green. It is the Time of Salads. And no wild salad green is more important than miner’s lettuce, Claytonia perfoliata.

I live near Folsom, and within a mile I saw enough of miner’s lettuce to feed a small town. It is everywhere, so much so that no one can see it. It’s become wallpaper, an anonymous part of the green world we’re enjoying these days. I watched scores of people pass one of the world’s great salad greens without so much as a second glance.

I wonder if they just didn’t recognize the plant in its natural setting? After all, next to blackberries and wild fennel, miner’s lettuce is probably the most recognized wild edible in this part of the country.

Even dazzling urbanites seem to know it, possibly recalling dim memories of summer camps gone by, or of a fancy Alice Waters salad they might have enjoyed at Chez Panisse back in 1989 or something. In gourmet circles, miner’s lettuce has become a commonplace, an afterthought. It is the iceberg lettuce of wild foods.

Photo by Hank Shaw
Photo by Hank Shaw

Undeservedly so. Miner’s lettuce is pleasingly crunchy, mild-tasting, has large leaves, remains tender even when in flower, and is so loaded with vitamins it will cure scurvy. The plant got its name because the Gold Rush miners ate it to stave off the disease, which is caused by a Vitamin C deficiency; they learned this trick from the local Indians, no doubt.

According to a study in the Journal of the American Dietetic Association, 100 grams of miner’s lettuce — about the size of a decent salad — contains a third of your daily requirement of Vitamin C, 22 percent of the Vitamin A, and 10 percent of the iron.

Combine this with stinging nettles and you have everything you need to revive your system from a winter’s worth of heavy meats, dried grains and roots.

All of these qualities impressed early explorers so much they saved the seeds of Claytonia perfoliata and brought them back to Europe to grow, first as a curiosity, then as a food plant.

Many sources say this happened in 1749, but I have never found any reference to any original source of this date, which I think is a transposition of the real date the plant reached Europe.

According to Hortus Kewensis, an 1811 catalog of everything growing in England’s famous Kew Gardens, the great Scots naturalist Archibald Menzies discovered miner’s lettuce on the West Coast of America in 1794, not 1749, and he brought seeds back to Kew, where it flourished.

I took a look at Menzies’ journal of the expedition — he was with George Vancouver on Vancouver’s famous round-the-world voyage — and it appears that Menzies actually found the plant along Puget Sound, in current-day Washington, on May 7, 1792:

A little before won the Fog dispersd… we walkd along shore… In this walk I found growing in the Crevices of a small rock about midway between the two points a new Species of Claytonia [a small flowering herb] & as I met with it no where else in my journeys, it must be considerd as a rare plant in this country. I namd it Claytonia furcata & took a rough sketch of it which may be seen in my collections of Drawings.

It is not exactly clear whether this is miner’s lettuce or not, but this is Menzies’ only mention of claytonia in the journals he kept on the voyage, and there are any number of accounts published before 1820 that mark this as the plant’s European provenance.

Miner’s lettuce was so important as a source of Vitamin C that the British planted it in Cuba and, later, in Australia. An early 19th century article I found notes that miner’s lettuce was already well-established in Cuba by 1811, and that it was “spontaneously growing” in the Botanical Gardens of Paris. By mid-century it was being sold by seedsmen as a salad green and potherb — and was rapidly becoming a weed in England.

This is a rare thing. Nearly all our edible household weeds are of European origin: dandelion, plantain, most thistles, chickweed, purslane, mallow, cat’s ear, garlic mustard, shepherd’s purse. For our very own miner’s lettuce to be brought back to Europe, and for it to become a widespread edible weed, is almost unprecedented.

What’s more, miner’s lettuce is one of the very few foods native to North America that we commonly eat.

Think about it: How much of the food in your pantry is native to this place? Wild rice, turkey, cranberries, jerusalem artichokes for sure. Chiles and some squash and beans can qualify, but they are more Central American. Let’s face it, when it comes to the salad course, miner’s lettuce is the king of our indigenous cuisine.

Why it hasn’t become part of our standard “salad mix” is beyond me. It’s ridiculously easy to grow, loves moist shade, and you can buy miner’s lettuce seeds pretty much anywhere. I am growing some this spring, and, like my wild arugula, will be happy to have this little plant colonize my yard.

Miner\'s lettuce
Photo by Holly A. Heyser

So far as eating miner’s lettuce is concerned, there is really no reason to stray beyond the salad.

This is how most of us enjoy it today, and it’s how the Native Americans ate the plant — although I think I’ll skip the trick performed by a few tribes that lived around Auburn, California: They would apparently strew miner’s lettuce leaves along the highways of a particular kind of ant, which would then excrete something acidic (formic acid, maybe?) on the leaves, flavoring them like vinegar. Weird, eh? I think I’ll stick to vinaigrette.

Normally I mix greens to create certain flavors and textures, but sometimes I prefer to eat miner’s lettuce solo. You really get to know a green when you do this, and you don’t want to dress such a salad too heavily; just a light coating is all.

I made a light mustard vinaigrette for the dressing, and added some fresh ground black pepper and a little flake salt for texture and crunch. The effect is tart, smooth, a little crunchy, and very “green” tasting. Miner’s lettuce is also known as winter purslane (they’re both in the portulaca family) and if you have ever eaten regular summer purslane, you can appreciate the succulent texture of this plant.

For those of you who live anywhere from British Columbia east to the Great Plains, you can find miner’s lettuce, and its various claytonia cousins, in shady, moist spots in spring. According to the USDA, miner’s lettuce has naturalized in a few places east of the Plains, notably Ohio, Georgia and New Hampshire. Pick from February to May, but you will need to find deeper, cooler, places the later you go.

The best leaves grow under trees. Miner’s lettuce is perfectly fine when in flower — unlike most spring greens — but pick before the flower stalk gets too long. Once picked, miner’s lettuce leaves will last in a plastic bag in the fridge for 3 to 5 days without too much loss of quality. Keep a damp paper towel in the bag to keep everything nice and fresh.

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About Hank Shaw

Hey there. Welcome to Hunter Angler Gardener Cook, the internet’s largest source of recipes and know-how for wild foods. I am a chef, author, and yes, hunter, angler, gardener, forager and cook. Follow me on Instagram and on Facebook.

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  1. what we call miner’s lettuce in AZ grows in damp places above 7000 ft, has a perfectly round leaf and a small clutch of tiny white flowers coming out of the center. any idea what this is? thanks!

  2. I live on Denman Island (a small island on the Salish Sea in British Columbia) and take great joy in foraging for edible plants. Miner’s lettuce is a favourite of mine. It tastes much like baby corn, is delightfully juicy and crunchy, and an overall pleasure to eat. It’s also hugely popular with my pet rabbits 🙂

  3. I live in an urban area in No. Calif. east bay area. Miners lettuce grows wild all over my property late winter in to spring. I pick huge bunches of it every week for fresh salads, especially after a rainfall. Simple salads with citrus, cucumbers, toasted walnuts, and a light vinaigarette. It’s delisious and refreshing. And so healthy!

  4. I first knew and saw Miner’s Lettuce in my Gardena Walking Club which is done inside the Willows Wetland Preserve.
    I just started planting a few ang hopefully will be invasive to my dandelions, musky stork bill, crab grass and sorrel/buttercup weeds. I will not mind my yard invaded by this tasty salad greens.
    The only fly in the ointment is finding it likes moist soil. We have dry spells in California and only lately we have lots of rains.

  5. Given how easy it is to grow and that it reseeds itself without any problem, has caused me to be curious about a term that gets used a lot in somewhat similar circumstances: invasive species.

    Before anyone misinterprets my question, I am not proclaiming that miner’s lettuce IS an invasive species or that anyone should should stop enjoying and/or propagating it. That is NOT the case.

    Indeed, it is my general ignorance regarding the label that ptompts my question. I’m hoping someone might be able to give me a brief overview of the label “invasive species” . What things are key in determining when some species of plant to properly be considered “invasive” and maybe why something like miners lettuce would not be labeled “invasive”.

    Without cheat here by looking it up in a dictionary, my personal “working understanding” of an invasive plant species would be one with the following characteristics:

    – does not originate in area
    – grows rapidly/reproduces easily
    – outcompetes local vegetation
    – causes enviromental harm by
    displaceing/eliminating critical
    native plants
    – causes economic harm by taking
    over commercially grown crops.

    But I sense this is either wrong or incomplete. Consider: There is a plant, beautiful I thought, that I would see infrequently as a ornamental in yards. I would also see it, rarely, growing wild in small patches. I didn’t know what is was but I wanted to see if it was suited to growing in my yard so I decided to find out. Eventually I learned it’s name: pampas grass. and that, unfortunately it was classified as an invasive species in my area. So I gave up on the idea of using it in my yard. I remember being a bit puzzled by the designation at the time since this was not like kudzu – pampas grass was used here infrequently as an ornamental and what grew wild here was even more rare and did not appear to be out of control.

  6. I have lots of miners lettuce in several container pots. It has grown all through the winter in Vancouver Washington on the covered balcony. If I leave the flower heads seeds on the dirt surface, will they reseed and keep going? The plants are kind of dying out and looking raggedy.

  7. I first encountered miner’s lettuce as an edible in a small natural foods store in San Francisco, and loved it. I was delighted to find it in the woods near Willits and made a salad of it. Now in New England, I’ve gotten seeds and hope to establish it on my land here.

  8. I’ve known about miner’s lettuce for some time and now have a property blessed with plenty of native growing examples and purslane to boot.

    While enjoying long walks with my dog it’s become our habit to enjoy a break near a patch of either and snack the edible greens nearby.