Leisha There is a plant I was recently introduced too, Laritaco. In botanical language it is known as Vernonanthura patens. It is a shrub with narrow leaves and clusters of soft purple flowers, often growing along roadsides, abandoned fields, and the edges of regenerating forest.
When I first heard about Laritaco, my curiosity was not just about the plant itself. What caught my attention was the family it belongs to.
Laritaco comes from the Asteraceae family, and I have a long relationship with this group of plants. Many of them feel like old friends that traveled with me from the north.
Before coming to Ecuador, plants like yarrow, chamomile, dandelion, calendula, burdock, and echinacea were already part of my landscape. They grew in the fields and gardens of my earlier life and eventually found their way into my work with soil, plants, and health.
When I began exploring the ecosystems here in the Andes, I started noticing something familiar. Different species, different landscapes, different climates, but the same botanical family appearing again and again.
The Aster family seems to follow us across continents.
It is one of the largest plant families on Earth, containing more than twenty thousand species. These plants appear in deserts, mountains, tropical forests, meadows, and disturbed landscapes. They are often among the first plants to reclaim soil after disturbance, quietly preparing the ground for more complex ecosystems to return.
Many of them are also deeply medicinal.
This is not a coincidence.
Plants in the Asteraceae family evolved powerful chemical defenses to survive in environments full of insects, animals, microbes, and environmental stress. Because they cannot move, their strategy for survival is chemistry.
They produce a remarkable range of compounds including sesquiterpene lactones, flavonoids, polyphenols, and terpenoid molecules. These compounds protect the plant from predators and environmental stress, but they also interact with biological signaling systems in animals.
Over time, people began noticing that these plants had effects on the body.
Across cultures and continents, Asteraceae plants appear repeatedly in traditional herbal medicine. Many are used to support digestion, metabolic balance, immune response, and the body’s natural processes of repair.
Laritaco belongs to this same lineage.
In tropical regions of Ecuador and neighboring countries, the leaves of Laritaco are often prepared as a tea. The plant carries the bitterness that is characteristic of many Asteraceae plants, and that bitterness often signals the presence of biologically active compounds.
Researchers studying Vernonanthura patens have found that the plant contains polyphenols and other molecules that influence oxidative balance and cellular signaling pathways. Some laboratory studies suggest that compounds within the plant interact with processes involved in inflammation and cellular regulation.
These are the kinds of biological pathways scientists often study when examining plants that may influence abnormal cell growth.
It is important to understand that plants rarely work through a single mechanism. A plant like Laritaco contains dozens, sometimes hundreds, of compounds interacting with biological systems at the same time.
This complexity is part of what makes plant medicine so fascinating.
And it brings us to another plant that often enters the conversation.
In many parts of the Andes, people use the name Vernonia for plants that look very similar to Laritaco. Botanically, this makes sense. Laritaco itself was once classified within the Vernonia genus before scientists reorganized the group into several related genera.
In practice, many of these plants share similar characteristics.
They are shrubs with purple flower clusters, bitter leaves, and a long history of traditional use. Their chemistry overlaps because they evolved within the same botanical lineage.
In traditional herbal practice, different species within the Vernonia group are sometimes used in similar ways when one species is not available.
The interesting thing about plants like these is that their chemistry does not arise in isolation.
The compounds they produce are shaped by their relationship with the soil biome.
Roots interact constantly with fungi, bacteria, and other organisms living in the soil. These microbes influence nutrient availability and stimulate the plant to produce defensive compounds. In living soils with diverse microbial communities, plants often produce richer and more complex phytochemical profiles.
The chemistry of the plant becomes an expression of the ecology beneath it.
When people consume these plants, their compounds encounter another microbial world inside the human body.
Many plant molecules are transformed by the human microbiome into new compounds that influence metabolism, immune signaling, and cellular communication. In this way, a thread connects the soil beneath our feet to the biological systems inside our bodies.
Living soil shapes plant chemistry.
Plant chemistry interacts with the microbiome.
The microbiome influences human physiology.
This chain of relationships is one of the reasons I am so fascinated by plants like Laritaco and its relatives.
They remind us that the boundaries between ecology, microbiology, and human health are not separate systems. They are different expressions of the same living network.
Walking through landscapes in Ecuador, I often notice the Aster family appearing quietly in the background. Some are species I already know well. Others are entirely new to me.
But the pattern is familiar.
Different plants, different places, yet the same botanical lineage appearing again and again, continuing a conversation that stretches from northern meadows to tropical valleys.
Old friends in new landscapes.
And sometimes the plants we think we are discovering have been traveling with us all along.
Note:
Laritaco (Vernonanthura patens) and the plants commonly called Vernonia are closely related shrubs in the Asteraceae family, which is why they often look almost identical at first glance. Both grow as woody shrubs with clusters of soft purple flowers and carry the bitter chemistry typical of many medicinal plants in this lineage. Botanically, Laritaco was once classified within the Vernonia genus before scientists reorganized the group, so the two plants share much of the same evolutionary background and many of the same phytochemical traits. The main differences appear in their physical form and habitat. Laritaco usually has longer, narrower leaves and is more common in tropical lowlands and foothills, while Vernonia species often have broader leaves and are frequently found at higher elevations in the Andes. Despite these distinctions, their similar chemistry and botanical ancestry explain why traditional herbal systems often treat them as related plants with overlapping medicinal roles.
