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Exploring the cannabis community in Argentina: Lucia Amaranta Thompson defends doctoral thesis

Lucia Amaranta Thompson outside of the Pufendorf institute where the defence took place. Photo: Emma Lord.
Lucia Amaranta Thompson outside of the Pufendorf Institute in Lund, where the thesis defence took place today. Photo: Emma Lord.

How can a plant shape knowledge, community, and activism? New doctoral thesis sheds light on cannabis activism and human–plant relations in Buenos Aires, Argentina.

Today, Monday 29 September, Lucia Amaranta Thompson marks the successful defence of her doctoral thesis in Gender Studies at Lund University, presenting a unique ethnographic insight into the cannabis community in Buenos Aires, Argentina. The defence took place at the Pufendorf Lecture Hall where colleagues, friends, and fellow researchers gathered to take part in the academic discussion and celebrate this important milestone in Thompson’s research career.

In her thesis, The Ontology and Epistemologies of a Plant: The Cannabis Community in Buenos Aires, Argentina, Thompson explores how cannabis activism has developed as part of Argentina’s tradition of social movements. 

The plant held significant meaning; it was spoken of and listened to with care, seen as a giving being

Thompson’s research began through contact with Mama Cultiva, a mothers’ organisation central in shaping Argentina’s legal reforms. From there, she was drawn into a vibrant network of users, cultivators, and activists working across medical, legal, and policy domains.

At the heart of the thesis is a compelling exploration of how the cannabis plant is understood not only as a medicinal resource, but as a living, thinking being. An agent in its own right. Through ethnographic encounters, Thompson reveals how the plant is spoken to, listened to, and cared for, becoming a central figure in a culture of conviviality and shared values.

“The plant held significant meaning; it was spoken of and listened to with care, seen as a giving being that interacts throughout its life and beyond with those who grow and use it. In this sense, the plant is thought of as ‘alive and thinking’,” Thompson writes.

Grounded in feminist decolonial theory and ethnographic methods, Thompson’s work brings together perspectives from users, cultivators and activists, revealing how the cannabis plant emerges not only as a medical resource but also as a relational being with cultural, spiritual, and political significance. 

By focusing on intersectionality and valuing knowledge from marginalised groups, this approach questions strict prohibitionist policies and highlights how laws and attitudes about cannabis are shaped by deeper inequalities—such as gender, class, race, and ability. It paints a detailed picture of cannabis politics, showing how personal experiences and broader social issues are closely connected.

The thesis contributes to ongoing conversations in gender studies, anthropology, and political ecology, offering new insights into how human–plant relationships can shape collective identities, alternative epistemologies, and communal forms of resistance. 

Read the full thesis in the Lund University Research Portal

About the defence

External reviewer: Professor Anders Burman, School of Global Studies, University of Gothenburg.  

Examination committee:

  • Bengt G. Karlsson, Professor, Department of Social Anthropology, Stockholm University
  • Thaïs Machado-Borges, Associate Professor (Docent), Nordic Institute of Latin American Studies, Stockholm University
  • Tina Mattsson, Associate Professor (Docent), School of Social Work, Lund University
  • Substitute (reserv) Kristina Göransson, Associate Professor (Docent), School of Social Work, Lund University

Chair person: Ov Cristian Norocel.

The audience's heads are visible from behind. Anders Burman appears blurred in the background. Photo: Emma Lord.
External reviewer: Professor Anders Burman from the School of Global Studies, University of Gothenburg presents the thesis.

About the thesis

Photo: Amaranta Thompson's thesis.

Title: The Ontology and Epistemologies of a Plant: The Cannabis Community in Buenos Aires, Argentina.

Subject: Gender studies

Supervisors: Professor Helle Rydström and Professor Emerita Diana Mulinari

Thompson examines how the cannabis plant is understood not only as a medicinal resource but as a "living and thinking" being with agency; one that cultivators and users speak of, listen to, and care for.

Lucia Amaranta Thompson sits in front of a laptop during her thesis defence. Photo: Emma Lord
Lucia Amaranta Thompson expresses her gratitude to everyone who has taken the time to read her thesis. Photo: Emma Lord.
Professor Anders Burman presents the thesis. Photo: Emma Lord.
The activism of mothers is an interesting aspect in the thesis says External reviewer Professor Anders Burman, School of Global Studies, University of Gothenburg, when presenting the thesis. Photo: Emma Lord.
The examination committee sitting in the front row: Bengt G. Karlsson, Thaïs Machado-Borges, Tina Mattsson och Kristina Göransson. Photo: Emma Lord.
The examination committee sitting in the front row of the audience: Bengt G. Karlsson, Thaïs Machado-Borges, Tina Mattsson och Kristina Göransson. Photo: Emma Lord.