Anyone who has traveled through Chilean or Argentinian Patagonia will have come across some thorny bushes of bluish or purple fruits that everyone calls, almost without thinking, michay or calafateThey are often used interchangeably, but behind these names lie several distinct species of the genus. berberiswith fascinating botanical, culinary, and cultural nuances.
Things get even more complicated when it is discovered that, in different corners of southern Chile and Argentina, the same shrub can receive different common namesand that even on the Internet there is an abundance of texts in which michay and calafate appear as synonymsTo clear up this mess, it's helpful to bring order to the confusion: to see which species is which, how they can be distinguished at a glance, what each fruit tastes like, and what role they play in the native flora of southern Australia.
Michay and calafate: same botanical roots, tangled names
First of all, both the michay and the calafate belong to the genus Berberis, a group of thorny shrubs that are distributed in different regions of the world, including the Patagonia and southern ChileThe genus name comes from a word of Arabic originwhich gave rise to the Latinized form Berberis used in botany.
Within this genus there are several species relevant to our topic: the michay is often associated with Berberis darwiniiwhile the calafate is primarily identified with Berberis microphylla (also known as Berberis buxifolia (in some texts). In turn, there are other species of the genus, such as Berberis valdiviana, which share a southern habitat and are sometimes mixed in popular language.
International botanical gardens also reflect this diversity. In places like Kew Gardens (United Kingdom) various species of Berberis are cultivated and studied, including Berberis darwinii y Berberis buxifolia, While in the Oxford Botanic Garden It appears documented, for example, Berberis valdivianaThese records help to establish the botanical identity of plants that, in everyday language, end up being lumped together with "calafate" or "michay".
In continental Chile, according to a botanical review by Landrum, some have been described 16 species of BerberisIf we exclude two endemic species from the Juan Fernández archipelago and two others that belong to Argentina, we are left with around 12 species present on the continentWithin these, there are five species that are commonly called michay (linked to the meaning of “yellow stick”) and five others that share the names michay or calafatedepending on the region and local custom.
All of this explains why, when trying to search for information on the Internet, The confusion increases instead of becoming clearer.Many websites refer to michay as if it were synonymous with calafate; some texts overlook the fact that they are different species within the same genus, and in practice, in much of Patagonia, it ends up being called calafate to almost any spiny Berberis with dark berries.
General characteristics of the Berberis genus in Chile and Patagonia
Before going into detail about how to visually separate the michay from the calafate, it is worth remembering that we are talking about a group of woody and thorny shrubswhich in the southern part of Chile and Argentina form part of the landscape of scrubland and cold forestThey can be found, for example, in Magallanes, Chilean Antarctica and the Aysén Region, as well as in Patagonian areas on the Argentinian side.
The species of the genus Berberis present in continental Chile show a combination of leaves generally small, persistent or semi-persistent, thorns to a greater or lesser degree, yellow flowers and fruits in the form of Berries with bluish, purple or dark tonesAlthough the appearance varies depending on the species, they all share that air of a sturdy shrub, very well adapted to cold climates and strong winds.
In the specific case of michay (Berberis darwinii), it is a shrub always greenwith spiny-edged leaves and showy clusters of yellow or orange flowers. Meanwhile, the calafate, identified mainly with Berberis microphylla, presents smaller leaves and stems with powerful thorns, in addition to the characteristic deep purple edible berries.
Other species, such as Berberis buxifolia o Berberis valdivianaThey also form part of this mosaic of native shrubs. Some are cultivated as ornamental plants both in Chile and Argentina, as well as in botanical gardens in other countries, as explained by complete growing guideprecisely because of the contrast between its dark foliage, its golden flowers and the compact shape of the shrub.
The species of the genus Berberis present in continental Chile show a combination of leaves generally small, persistent or semi-persistent, thorns to a greater or lesser degree, yellow flowers and fruits in the form of Berries with bluish, purple or dark tonesAlthough the appearance varies depending on the species, they all share that air of a sturdy shrub, very well adapted to cold climates and strong winds.
How to tell the difference between michay and calafate at a glance
The key to not confusing michay with calafate lies in looking, above all, at where the thorns are and what the leaves are likeAlthough both are quite prickly, the "armor" they use is different, allowing them to be distinguished even without being a botanical expert.
El michay (Berberis darwinii) concentrates a good part of its defenses in the own leaves. These are usually bright, a deep dark green and with the edge clearly provided with spiny teethThat is, the leaf's outline is not smooth, but rather resembles a small saw. Furthermore, the branches appear spines formed by several armswith structures that can have five to seven points, which increases protection against herbivores.
El calafate (Berberis microphylla), on the other hand, has a somewhat different approach. Its leaves are generally smaller and of relatively soft texturewith entire edges or fewer spiny teeth than those of the michay. In this case, the defense is concentrated on the stems and brancheswhere they emerge very aggressive spines, typically in groups of three armsThat arrangement of triple spines on the stems is one of the most useful features for recognizing it.
If both shrubs are compared in the field, it can be seen that the michay gives a visual impression of denser and brighter foliagewith robust-looking leaves and well-armed edges, while the calafate seems somewhat more "delicate" in its leaves, but compensates with particularly sharp stem thornsIn any case, it's best not to get too close without paying attention, because either of them can leave a mark on your skin.
The differences are not limited to leaves and thorns: they also include Flowers aid in identificationThe calafate tends to display flowers solitary, of a tone golden yellow quite intense, which emerge along the branches. The michay, for its part, displays clusters of grouped flowersalso yellow but often with a clear tint orangewhich stands out even more against the background of dark, shiny green leaves.
Differences in fruits: flavor, color and culinary use
When you look at the fruit, it's easy to understand why so many people confuse michay and calafate: both produce dark-colored berries, tending towards purple or deep blueThey are quite similar in size and appearance at first glance. However, upon tasting them, it becomes clear that they don't taste the same, and that even They are used differently in the kitchen.
El calafate It is famous throughout Patagonia for its Edible, sweet and pleasant fruitsThe berries, from deep purple colorThey typically have a flavor described as sweet with a slightly acidic touch, but generally very pleasant on the palate, ideal for eating straight from the plant. Popular tradition has even built a legend surrounding the calafateIt is said that whoever eats its fruit "always returns to Patagonia," which has helped to make it a symbol of the region.
El michayAlthough it often goes unnoticed as food, it also produces edible fruitsIts berries visually resemble those of the calafate, but their flavor is generally more acidic and less sweetThis marked acidity means they are more frequently used in the production of jams, sweets, jellies and other preparations where sugar and cooking balance the acidity and bring out the aroma of the fruit, a characteristic shared with other berry species as shown by the properties of the amelanchier fruit.
Agricultural engineers and specialists, such as Rodolfo G. Sánchez from INTA In Argentina, they have pointed out precisely that difference: compared to the fruits of the michay, which are more acidic and often associated with sweet preparations, the Calafate offers a milder, sweeter, and gentler flavor.which encourages its consumption both fresh and processed in liqueurs, ice creams, jams or pastries.
Some informative texts or messages may contain the recommendation to Do not consume the fruits of the michayor at least not do so indiscriminately, while the calafate is discussed without question as an edible fruit. This is usually due more to a general caution and confusion of names than anything else. When there is botanical certainty that it is Berberis darwinii and the local tradition of use is known, its fruits are considered edible, in the same way as those of the calafate, always bearing in mind that tolerance may vary from person to person.
Traditional uses: dyes, medicine and cultural value
Beyond the table, both michay and calafate have played a relevant role in the traditional uses of the communities of southern Chile and PatagoniaThey are not just prickly, fruit-bearing shrubs: for generations they have been authentic natural “pharmacies” and “dry cleaners”.
One of its most striking features is its ability to dye bright yellow. The root and bark of the michayIn particular, they have historically been used for dyeing wool and other natural fibers of a vibrant yellow color. This dyeing use is so deeply rooted that it is related to the very popular meaning of michay as “yellow stick”, a direct reference to the tone of the dye obtained from the plant.
Both michay and calafate, and in general many species of Berberis, contain an alkaloid called berberine, present almost universally in the rhizomes (thickened roots) of the genus. Berberine has been the subject of numerous studies for its Antibacterial properties, traditionally used for the treatment of various enteric infections, including cases of bacterial dysentery.
In addition to its antibacterial action, it has been described that Berberine shows antitumor activity against certain types of cancer, which has sparked interest in the field of biomedical research. In local practices, however, its use has been more empirical, as part of home preparations or folk remedies for digestive ailments and other conditions.
In the case of the michay, it is also mentioned that Its flowers are edible. and they have a taste markedly acidicThis aligns with the flavor profile of its fruit. In many areas, these shrubs are considered part of the ethnobotanical heritage of the region, a link between wild flora and the knowledge accumulated by indigenous and rural communities over time.
Distribution, habitat and ecological role
Regarding their distribution, michay and calafate are found naturally in Chile and Argentinaespecially in the areas southernmost and PatagonianOn the Chilean side, regions such as Magallanes, Chilean Antarctica and Aysénwhere these shrubs are part of the native scrubland, cold forests, and transition zones between forest and steppe.
The environment in which they thrive is usually cold, windy and with poor or stony soilsThese conditions are where these Berberis trees show a remarkable capacity for adaptation. Being dense and thorny shrubs, they offer shelter to small animals and birds, and its fruits serve as food source for wildlifecontributing to the dispersal of seeds and, therefore, to the regeneration of vegetation.
Within the group of Berberis species present in continental Chile, the fact that several are called michay and many others michay or calafate demonstrates the extent to which these shrubs are integrated into the cultural and natural landscapeFor the local population, they are part of the everyday environment: they can be seen on rural roads, at forest edges and in grazing areas, where the thorns become an effective defense mechanism against livestock browsing.
This eco-friendly paper is combined with considerable landscape value. From an ornamental perspective, numerous Berberis species, including michay, are used in gardens and parks in Chile, Argentina, and other countries. contrast between its dark green, almost glossy leaves and the clusters of yellow or orange flowers It is especially prized, and in some European botanical gardens it is cultivated precisely as a sample of the southern flora.
In modern tourist Patagonia, the calafate berry has also become tourist and gastronomic iconIt is very present in typical products for visitors: from flavored chocolates and liqueurs to ice creams and jams featuring the fruit. This cultural significance reinforces the interest in correctly distinguish it from other Berberis that share a habitat but not the same notoriety.
Michay and calafate in popular culture and on the internet
When you delve a little into the internet looking for information about these plants, you realize that much of the current confusion stems from the a mix of scientific names and common namesIt is common to find pages that talk about michay as a synonym for calafate, or in which any Berberis with dark fruit present in Patagonia is simply named “calafate”, without specifying the species.
In some popular science texts or non-specialized publications, contradictory statements appear, leading one to believe that it is the same plant with two different names, when in reality they are mixing characteristics of Berberis darwinii and Berberis microphyllaFor example, the use of the root and bark of the michay tree as a dye is mentioned. yellow colors in the wool, and then jumps to describing the sweet qualities of the calafate fruit, implying that it is a single species.
Adding to this situation is the fact that, in many Patagonian towns, people simply refer to "calafates" to designate the entire group of shrubs of the genus Berberis that they find in their environment, limiting the precision of the scientific term to the academic sphere. From this point of view, it is not surprising that even nature enthusiasts or botany students get confused when trying to reconcile what they see in the field with what they read in books and on websites.
In nature tourism initiatives, such as activities of birdwatching In Patagonia, the presence of michay and calafate is also often mentioned as part of the native flora. Some local businesses or projects try to explain to the visiting public the basic differences between the two shrubsinsisting, for example, that the calafate has thorns on the stems and sweet fruits, while the michay is recognized by having thorns on the leaves and fruits with a more acidic taste.
In forums or personal blogs, it's not uncommon to find comments like "after doing some research, I've gotten even more confused...", followed by lists that cite... Berberis darwinii as michay and Berberis microphylla as calafate, accompanied by notes about their culinary, dyeing and medicinal usesSome of these texts openly invite anyone with more accurate information to share it, a sign that the topic continues to generate doubts even among people interested in local flora.
All this highlights the importance of clearly differentiating which traits correspond to the michay and which to the calafate, without losing sight of the fact that Both are part of a larger group of Berberis species present in Chile and Patagonia, sharing chemical compounds, traditional uses and a very visible presence in the southern landscape.
To understand how they behave thorns, leaves, flowers, and fruits Each one allows you to see these shrubs with different eyes when walking through the south of the continent. Understanding that the calafate is the one of triple thorn on the stem and sweet purple fruit, while the michay looks strongly spiny leaves, orange flowers, and more acidic fruitsIt helps you appreciate the region's botanical and cultural diversity. And incidentally, it prevents more than one needle stick and some culinary disappointment from mistaking one fruit for another.
