Foraging: identifying creeping cucumber, edible wild fruit

Latin name: Melothria pendula
Common name: Creeping cucumber
Season: Summer
Edible: Unripe fruit ONLY
Flavor: Good
Medicinal value: Unknown, but see notes below
Nutritional value: Carbohydrates, fiber, vitamin C and a surprising amount of protein

Identification difficulty: Beginner

Note on edibility: Only unripe fruits, which are light to medium green and hard should be eaten. Once even slightly soft or dark green, these fruits become dangerous laxatives. Some people, myself included, are highly sensitive to the laxative effects of this plant, even when the fruit is very unripe. I recommend only trying 1-3 at first, until you discover how you react. 

This charming little viny plant is Melothria pendula, commonly known as the creeping cucumber or the Guadalupe cucumber. The common names come from the similar appearance of the plant to cultivated cucumbers, although in miniature. Despite the names and the similar appearance, creeping cucumber is only distantly related to its cultivated cousins; they are both in the Cucurbitaceae family. 

The Cucurbitaceae family, or the gourd family, contains most melons, gourds, squashes and cucumbers. Cultivated cucumbers are part of the Benincaseae tribe (which also contains watermelons) and the Cucumis genus, but creeping cucumbers are not part of that tribe. 

What creeping cucumber does have in common with cucumbers and the white rind of watermelons is the taste. 

Creeping cucumber flower and young leaves

Creeping cucumber range

In the United States, creeping cucumber is found in the southeast states only, from Virginia south to Florida, and west as far as Kansas, Oklahoma and Texas. In rare occurrences it has been found in Pennsylvania, though be sure to really check your identification that far north. 

Outside of the USA, this plant can be found in Mexico, Central America, including the islands of the West Indies, and parts of South America. I am not sure how far south it extends. It has also been found tropical areas of the far east, such as Malaysia, Sumatra, the Philippines, and Bali. It is likely introduced to those areas. 

As always, this post is intended for readers in the United States, and I cannot account for potential look-a-likes in other countries, as I would not be aware of them. 

Creeping cucumber season

In the southern USA, you may begin to find fruit as early as June, and fruiting will continue throughout the summer, until the days start to shorten in September. In the northern part of the plant's range, you can't expect fruit before July. 

Creeping cucumber identification

Creeping cucumber leaves

Creeping cucumber stem, vine and leaf features 

Creeping cucumber is a tiny vine, only about 3-4mm in diameter, though the fruit-bearing tendrils will be thinner. The image to the right gives you a pretty good idea of the thickness of the vines as compared to my fingers.

As shown in the photo above, the thin leaves are palmate, which is to say that the leaf veins all come from a single point where they connect to the stem, like the fronds on a palm tree connect to the trunk.

They have 3 lobes when young, but 5 when mature, though 2 lobes will always be rather subtle. I have numbered them to make them easier to see in the photo above. 

As creeping cucumber is a vine, it can't support its own weight and creep over woody plants and even young trees, often forming dense mats. (See below.) Plants covered this way will die. 

The vine attaches to other plants via delicate tendrils shown here. The leaves, stems, vines and tendrils are all poisonous and should not be eaten. 

Creeping cucumber tendrils

A dense mat of creeping cucumber vines, covering other plants and underbrush.

Flowers 

Creeping cucumber flowers are bright yellow and have 5 petals. Each petal is notched at the end.

The flowers are dainty, around 7mm in diameter, or slightly larger than a pencil eraser. 

The flowers hang off pendules (from which the plant gets the second part of its Latin name: pendula), at the node where two opposite leaves meet on the vine. This means that the flowers, and the fruit they turn into, will often be hidden under the leaves. 

This unripe fruit is at the perfect stage for eating

Fruit 

ONLY UNRIPE FRUIT SHOULD BE EATEN.

Unripe fruit is light green, speckled, and firm or hard. 

Creeping cucumber fruits are ovate or occasionally  teardrop shaped. 

They are small, not more than an inch in length and half to 3/4 of an inch in diameter. They can be smaller, around the size of a jelly bean. 

The one shown to the right is at the perfect stage for eating. Once they darken and soften, the spots will fade and the insides will start to become gelatinous (see below). They will eventually become near-black. 

These fruits are too mature and will have
a dangerous laxative effect if consumed

Ripe fruits are powerful laxatives, eating them will result in the urgent need to painfully defecate and can potentially lead to dangerous dehydration and even muscle spasms. 

Eating creeping cucumber

Creeping cucumbers are fun to pick and are famously popular with young children who grow up in the states where they are native. 

The unripe, light green fruits taste similar to cucumbers, though I personally think they are closer to the white parts of watermelon rind. They are crisp and slightly juicy, and their best application is probably tossed into a salad. If you find a large amount you could also pickle them. 

Creeping cucumber nutrition

Creeping cucumber is generally ignored by American publications, but has been analyzed by Mexican authorities. Unfortunately, these publications are in Spanish, which I can't read or speak. 

However, according to "Green Dean", famous forager and author of the Eat the Weeds website, who had a friend translate the study, the caloric nature of unripe fruits are made up of 56.8% carbohyrdate, 16.30% fiber, and a surprising 12.6% protein. They are also good sources of vitamins and minerals, though which ones specifically aren't mentioned in the original publication I found, at least not the part that has been translated into English. It is possible they are similar to cultivated cucumbers, which means they would primarily have vitamin C and potassium. 

Unfortunately, the small size of these fruits makes their nutritional value rather limited, unless they could be cultivated to be much larger. 

Medicinal applications - don't

Despite the ripe fruit being a powerful laxative, it is important that you do not attempt to use creeping cucumber medicinally. The native peoples of the Americas were well-aware of this plant and yet no record of it being used medicinally has been found. This is likely due to how very powerful it is. It would be difficult to find a way to safely use this plant--and attempts could result in dangerous cramping and dehydration. 

How to identify and forage Texas wild mustard: bastard cabbage

Latin name: Rapistrum rugosum
Common names: Bastard cabbage, turnipweed, turnip weed, giant mustard
Season: Spring and early summer
Edible: Yes, entire above-ground plant
Flavor: Good to great
Nutritional: Yes, vitamins K, A, C, E and all the Bs, also copper and iron

Identification difficulty: Novice

Rapistrum rugosum, most commonly know as bastard cabbage, and less commonly as giant mustard, turnipweed or turnip weed, seems to be nothing more than a tall, cheerful yellow wildflower that paints Texas in swaths of color. 

But looks can be deceiving. 

Bastard cabbage is a wild mustard, (cabbage is in the mustard family), that gets it's common name from its highly invasive nature. Originally from Southern Europe, the Mediterranean and Northern Africa, bastard cabbage has spread to 17 U.S. states and has hit Texas particularly hard. 

Bastard cabbage has a deep, deep taproot that makes it hard to "root" out, (ha, ha, ha), and a habit of being one of the first things to flower in the spring, getting well-established before native plants can get a foothold. Indeed, it's rapidly displacing native wild flowers, like bluebonnets.

It's also edible and quite tasty when prepared correctly. So let's take a moment to get to know this invasive weed, you you too can try it!

Bastard cabbage identification 

Special note: Bastard cabbage is relatively easy to identify once its flowering, but can be more challenging before that. I recommend not harvesting this plant before flowering unless you have become fairly familiar with it, or are familiar with foraging mustards in general. 

After construction of apartment complexes, there are often
fields of bastard cabbage, which spring up in disturbed soil.

Location and season

One reason why bastard cabbage is so invasive is because it's one of the earliest greens we will see pop up in the season, usually by the first week of March hear in Texas. It gets a head-start on many native plants. 

Trails are another common place to find bastard cabbage.
Note the height and size of the mature plants.

Additionally, this is a ruderal species. That means that it's one of the first plants to get established if the ground is disturbed. In purely natural areas, disturbed ground is most common around creeks and in flood plains. But humans frequently disturb the ground for construction, road work, creating trails and pathways, in fields for seasonal farming, and for many other reasons. These are all good places to look for bastard cabbage--though don't eat it from near a highway or any other potentially contaminated area. It can also grow in and around trees that would usually provide too much shade for other plants, as bastard cabbage gets established before the trees leaf out.  

Plant size and shape

Bastard cabbage begins as a basal rosette, or a circular mat of leaves coming out from a central point, flat against the ground. Very quickly those leaves start to build up, creating a "fluffy" circle. 

When mature, plants will reach around 3' at the very tips of their flower stalks. They will be quite leafy for about 2/3 of their height, then be almost bare branches with just tiny leaves and flowers. The diameter of the leafy base will be between 1' and 2 1/2'. 

4-petaled yellow flowers in oval-shaped clusters

Flowers and fruits

The flowers are the most distinctive part of bastard cabbage, and I recommend not foraging them until they flower, at least not until you are quite familiar with the plant. 

Flowers are around 1/3 to 1/2 inch, bright yellow, have 4 petals in a cross shape. They grow at the ends of the central stalk or the ends of side branches in oval-shaped clusters.

Flowers appear by mid-spring (late March/early April in Texas) and the plant will generally be done flowering by late spring (May here in Texas). 

The flowers leave behind small, teardrop-shaped fruits, the size of a pencil lead, which will cling to the stalk until they ripen in to seeds. 

Stalk and branches

The stalk for bastard cabbage is light green and looks like it has textural striations along it. There aren't any red spots, though right before the plant bolts, the junction between the baby branches and the main stalk might look a little reddish or orangish. 

Right before the plant bolts the main stalk will have a green flower bud, and the baby branches will also have tiny buds (see the area circled in red). The stalk will be about 1/4" in diameter at this point. 

The branches are never directly opposite each other, they are always slightly offset vertically. But they will always alternate which side of the stalk they come off of. 

When the plant bolts (begins its reproductive phase), the central stalk will shoot up about a foot taller than the leafy base. The green buds will turn into yellow flowers, and the baby branches will grow out, making the whole plant multi-branched. 

When mature, the stalk will thicken to 1/2" or 3/4" in diameter and become a brighter, almost lime green. The branches can be grow to be 1/2" thick. 

Incredible variation in mature leaf shape, size, number of lobes, lobe size, and edge texture. 

Leaves

Bastard cabbage has some frustratingly complicated leaves. At the base of the plant and in the basal rosette, leaves will be quite large, from 8" to 12" long. They are often dark green and very wrinkly, but can also be medium green and unwrinkled. They have a long central mid-rib that is light green or white. 

The mature leaves are always deeply lobed, but sometimes those lobes can be more or less even in size and there can be many of them (above right), other times they can appear more as a spoon shape--with one giant lobe at the end of a long leaf stalk, with only tiny, barely noticeable lobes running along the stalk (above left). 

Just like leaf shapes, leaf edges also vary greatly. Edges will be scalloped, small toothed, large toothed (like a saw blade), wavy or even nearly smooth, though never fully smooth. 

To make things even more complicated, many of the smaller leaves near the top of the plant will be triangular or lanceolate and may or may not have any lobes. 

This is why it's important to use more features than just leaf shape at first. 

Many, but not all, mature leaves will have textural bumps.

Bastard cabbage plants will always have several leaves that are covered in tiny, textural bumps. But not EVERY leaf will have this feature. They are more common on mature leaves, and may be significantly less obvious than on the example above. 

Foraging prickly sow thistle: pictures, flowers, leaves & identification for Sonchus asper

Latin Name: Sonchus asper
Common Names: Prickly sow thistle, spiny sow thistle, sharp sow thistle, rough milk thistle
Season: Early spring
Edible: Yes 
Flavor: Good
Medicinal and nutritional value: Vitamin rich, antioxidant strong, liver and kidney purifying 
Identification difficulty: Beginner

The leaves of this plant are at a good stage for harvest

Despite the texture, prickly sow thistle is one of the edible wild plants I look forward to the most every spring. 

If you can work around the prickles, which is easy enough to do when planning dishes that need to be pureed (like sauces and soups), you are rewarded with a wonderfully rich leafy green. The flavor is generally very mild with only a slight bitterness, comparable to swiss chard or belgian endive, to add complexity. Most everyone who eats leafy greens will enjoy properly prepared prickly sow thistle. 

Perhaps even better, prickly sow thistle is extremely common 

Nutritional & medicinal benefits

The sow thistle family (Sonchus) is one of the ones where a significant amount of research has been done into nutrition and potential medicinal benefits. Sow thistles have long been accepted as health foods, associated with liver and kidney purification. 

Recent studies have shown that the sow thistles, particularly the prickly sow thistle, are antioxidant powerhouses. Antioxidants have been shown to reduce the effects of aging, both on the body and mind. They also lower your cancer risk. 

While antioxidant extractions are available in pills, syrups, etc., studies show that the best way to gain the positive effects of antioxidants might simply be to incorporate a large number of antioxidant-rich foods into your diet. 

All three sow thistles were found to be rich dietary fiber and in vitamin E, though smooth sow thistle (Sonchus arvensis) had the highest concentrations. Like most leafy greens, sow thistles have a lot of valuable minerals, including potassium, calcium, magnesium, iron, zinc, sodium and selenium. Smooth sow thistle is the best of the 3 for potassium, common sow thistle has the highest concentration of iron and prickly sow thistle offers the most calcium. 

As an added bonus, sow thistles DO NOT have large amounts of oxalic acid, even though they exhibit red coloration. They contain less than 10% of the oxalic acid found in spinach or swiss chard, for example, and less than 5% of the oxalic acid in purslane. 

To learn more about the antioxidant properties of prickly sow thistle, check out this article from the National Library of Medicine. 

To learn more about the nutritional qualities of the sow thistle genus, please read this article from the National Library of Medicine. 

History as a food crop

There are three, common, wide-spread sow thistles: Common sow thistle (Sonchus oleraceus), prickly sow thistle (Sonchus asper) and smooth sow thistle (Sonchus arvensis). They are native to Europe, particularly the Mediterranean regions. They are now found throughout temperate North and South America, Australia and New Zealand, the Middle East, and much of Asia and Africa. 

A good-sized haul of prickly sow thistle leaves,
ready to cook and eat

Our earliest record of sow thistles as a food comes from the ancient Greeks, who considered it to be strengthening, and used the non-prickly varieties in salads, especially during winter time when greens were scarce.

Europeans in the middle ages valued the sow thistles for animal feed. The name "sow thistle" comes from farmers feeding the plant to sows with piglets; it was believed that this plant increased lactation.

As traditional agriculture became the standard in Europe and European colonies, like the U.S., sow thistles came to be regarded as common weeds, and a great deal is spent to eradicate them. 

But that is not always the case in areas where sow thistles have spread. 

As European agricultural practices spread with colonization, many native species of plants, which were essential food sources for the native peoples, were wiped out. Eurasian plant species had evolved a centuries-long history of competition, due to exposure to other plant species spread via trade routes. As a general rule, these plants could out-compete native species, which is why dandelions, plantains, sow thistles and others are considered common weeds today. 

But many native peoples have embraced the "weeds" traditional agriculture rejects, and have used them to supplement or replace native plants that have been decimated. Sow thistles in particular are consumed by the Māori of New Zealand and the by the native peoples of the rural Brazilian rainforest regions.

In addition to the three most wide-spread sow thistles there are many regional species, especially in Africa and some hype-local species in places like the Canary Islands, some of which are used for food. 

Foraging for Goldenrod, Avoid Poisonous Ragwort

Young goldenrod shoots growing up from
last year's dead plants. This is probably
the best age for the stalk + leaf combo

Identification difficulty before blooming: Novice 

Identification difficulty after blooming: Beginner

Goldenrod shoots and leaves are in season right now. 

There are over a hundred species of Goldenrod, all of which are members of the genus Solidago, and they are mostly native to the Americas, although some come from Eurasia. There are far too many to learn each one, though in time you will become familiar with the varieties that live near you. 

And there will be a goldenrod near you, as varieties of the plant are available from parts of South America, all the way north into Alaska and the northernmost Canadian provinces.

Goldenrod is generally considered to be an easy plant to identify, and it is, so long as it's in bloom. 

Before the flower blossoms, goldenrod has several look-a-like species, at least one of which is poisonous, and I don't think this look-a-like gets enough attention in the foraging world. 

But before we go over that, let's talk about goldenrod in general.

Goldenrod taste and uses

These goldenrod plants are about 4ft tall,
at this stage you can break off the top 
5 inches, as long as it is tender.
The leaves are also good here.

The entire above-ground portion of goldenrod is edible. The most common use is a tea, brewed either from the young leaves or the flowers, with the flower-tea more often served chilled. Tender leaves can also be eaten raw or cooked, though they are strongly flavored and are best mixed in with other greens, like in a salad. The young shoots (under 6 inches or so) and tender tips of growing plants can be used as a cooked green, though they are also quite strong in flavor. 

Leaves and plant tips should only be used before the flower buds form, after that they loose flavor and become tough.

You have to really enjoy strong-flavored plants to like goldenrod. The flavor has been described as similar to licorice, though I personally disagree. Perhaps some varieties do taste like black licorice, but in my experience, Forager Chef's description of "the Aster flavor" is more appropriate. It has a strong flavor unique to the aster family, which is otherwise hard to describe. 

Identifying and foraging common wood sorrel. A common edible weed, often mistaken for clover or shamrock. Perfect for beginners.

Identification difficulty: Beginner

Happy St. Patrick's Day! I'm going to try and get this post up early so I can go out drinking :). I'm not Irish, but who does't love a good beer? (Note: I said a GOOD beer. Not that swill they dye green and pour out by the barrel-full!)

In honor of the occasion, I'd like to talk about how to identify common yellow wood sorrel, sometimes called the American Shamrock.

Wood sorrel isn't a shamrock, as a shamrock is a type of clover (Latin genus: Trifolium), and wood sorrel is part of the genus Oxalis. Then again, there is some confusion about what a shamrock actually is! You see,  we associate the classic "3 heart" shape with shamrocks, yet no clover actually has this shape. Clovers are all 3 ovals! Instead, sorrels (Oxalis species) have the 3 hearts.

So who knows, maybe wood sorrel really is a shamrock after all?

As I've mentioned before, wood sorrel holds a special place in my heart. It's the first wild food I ever ate, that I didn't harvest with my mother or one of my grandmothers. No member of my family ever pronounced it as safe, I never picked it with them. I watched other children enjoy it, and picked and ate it for myself. They called it lemon clover. I ate it without hesitation, rather a dangerous precedent when your "expert" is an 8-year old, but it all turned out all right in the end.

Anyway, wood sorrel is easy to identify, and grows throughout North America. It also tastes great, and is a very versatile ingredient in the kitchen, all-in-all, a perfect plant for beginners to forage.

One small note of caution: Oxalis species contain oxalic acid, and shouldn't be eaten by those with kidney or liver diseases, or by those with certain autoimmune diseases, like Rheumatoid arthritis. 

On to identification . . .

Foraging for wild violets: identification, edibility and sustainable harvesting

Identification difficulty: Beginner 

Wild violets are a beautiful, fleeting part of early spring. They grow low to the ground, dainty and unassuming, but bring a smile to every woodland walk. They are found in Europe and North America, and apparently in Australia as well.

Violets are also a tasty edible wildflower, with a unique flavor and aroma which has been valued for centuries. Violets were a vogue flavor in Victorian era, and after, up until the First World War. They were used in candy and baked goods; but trench warfare, and subsequent post-war expansion of roadways and urban areas across Europe, tore up many of the fields they were harvested from.

Perhaps its most famous use is in Creme de Violette, a liqueur made by infusing violets into a brandy or neutral spirit. Creme de Violette is beautiful and delicious, with deep purple color, delicate aroma, and impossible to replicate floral taste. For years it was nearly impossible to get a hold of (due to the scarcity of wild violets), but new crops are being harvested from the alps.

You too can experience the unique and elegant taste of violets, and without the expensive price tag, simply by taking a walk in the woods!

It's important to know that violets are native to our forests, not an introduced species. They are also essential for the heath of pollinators, like bees, so sustainable harvesting is a must! 

Foraging: Identifying and Eating Purslane (avoid poisonous spurge!)

Purslane: abundant, tasty, very nutritious, and pretty easy to identify--with just a couple pointers!

Identification difficulty: Novice

Purslane, (latin name: Portulaca oleracea), is a wonderful, edible "weed". It's tasty, versatile, highly nutritious, easy to find, grows everywhere and is relatively easy to identify. It's not native to North America, and so is generally considered to be an invasive weed. For those of you with an interest in sustainable eating, choosing invasive species for your meals is one of the most sustainable, locavore options. There's even a word for it: invasivore!

Purslane does have one dangerous look-a-like: the potentially deadly spurges. (Euphorbia varieties). I find that they really don't look that much alike, and there is one tried and true way to tell them apart--making purslane a good plant for even a novice forager. 

With that in mind, I'd like to tell you everything I know about purslane, including how to identify it, how to not confuse it with spurge, flavor profile and some basic cooking tips. 

Purslane quick history

Purslane has spread throughout all of the Old World, (Europe, North Africa, and Asia). I have heard conflicting accounts wether it originated in India, the Middle East, or the Far East. It't eaten fairly frequently through out it's range, especially in the Indian subcontinent. With European imperialism, purslane spread to Australia and North and South America, and it's eaten there too (especially Mexico)--just strangely not in the U.S. or Canada in the modern day. It was apparently eaten in parts of the US as recently as WWII.

Purslane can be found most anywhere, as can adapt itself to a variety of climates, from arid to damp, hot to cold, and sun to shade. (Not including Antartica and other uninhabitable places, like parts of Canada and Russia. :P  Just kidding!). It's a succulent, and can adapt itself to environments that experience the extremes of seasonal monsoons and months-long droughts.