Administrative Structure and Council Members

AHG Leadership


Bevin Clare, M.S., RH(AHG), CNS
AHG President

Bevin is a Professor and Program Director of the Master of Science in Clinical Herbal Medicine at the Maryland University of Integrative Health. She holds a MSc in Infectious Disease from the London School of Hygiene and Tropical Medicine, serves on as an adjunct Assistant Professor at the Massachusetts College of Pharmacy and is an Adjunct Associate Professor at the New York Chiropractic College. Bevin has studied herbal medicine around the world and blends her knowledge of traditional uses of plants with modern science and contemporary healthcare strategies. She is founder of the Herbal Clinic for All program, providing cost-free herbal medicine healthcare since 2007.  She is a board member of the United Plant Savers, a group working to protect at-risk medicinal plants in North America. When she isn't world wandering she resides in Maryland with her husband and two little ones. Bevin is the author of Spice Apothecary (Storey Book 2020) which explores the therapeutic use of spice as accessible and delicious herbal medicine.

Holly Hutton, RH(AHG)
AHG Vice President

Holly’s primary focus is as a clinical herbalist.  Her training includes a East West Certified Herbalist certificate from the East West School of Planetary Herbology and completion of a mentorship with Karta Purkh Singh Khalsa.  She owns an herbal products company, Herbal Goddess Medicinals and grows and sells medicinal herbs in Bend, Oregon.  Holly teaches a variety of classes ranging from beginning herbalism to advance medicine making.  She has focused much of her time to exploring her bioregion and working on a book about traditional use.  She has served on a wide variety of boards over the years, the last two with organizations dedicated to fostering support for local farming and food production. She has a MA in social services focusing on issues related to homelessness and economic self sufficiency and has worked in a variety of management positions for over 30 years.  Concurrently Holly completed a MFA and has been creating and exhibiting art for the last 40 years.

David Harder, RH (AHG)
AHG Treasurer

David practices Clinical Herbalism at 143 Northampton Street in Easton, Pennsylvania. He is active as an educator in his community, a co-founder of “Herbal Exchange” the NJ AHG Chapter and “Changewater Wellness Center”, a clinic that provides clinical experience to advanced herbal students, while serving individuals needing low cost counsel and herbs. David has been a Registered Herbalist of the American Herbalist Guild since 1999. He and his wife, Linda has owned and operated Nature’s Way a natural foods store in Easton since 1975.  On play days with mild weather, gardening, herbal wild crafting and cycling, take him out doors. Inclement weather allows time for research, woodworking and music.

Denise Cusack
AHG Secretary

Denise Cusack is an herbalist, writer and grower in Wisconsin. She grows hundreds of medicinal herbs and is expanding her educational gardens at her new farmette. She’s an avid learner with over 20 years experience studying herbs, holistic nutrition, and growing. She began practicing in 2015 after years of writing about medicinal herbs. Denise is Executive Director of HWB, volunteering as Clinical Herbalist with the Veterans Resiliency Holistic Clinic. Involved in youth education since 2004, she homeschools her sons. As a general member of the AHG since 2016, she’s working towards becoming a registered herbalist. For more, visit

Governing Council

Sophia Boettcher
Council General Member

 Sophia is firstly a non-profit medical advocate and secondly a clinical herbalist.  In cooperation with physicians at Stanford, UCSF, USC, MD Andersen, UT Southwestern, et al. -- she leverages her background in computer science and ethnobotany to create big data clustering algorithms that help inform plant medicine-inclusive treatment pathways for rare disease patients.  The medical technologist-herbalist's deep-seated belief in ethnobotany's value to the public good stems from that as a teenager, she fell gravely ill with lupus, scleroderma and epilepsy.  Over the next decade, Sophia embraced the breadth of Karuk, Tlingit, Javanese, TCM and Ayurvedic healing traditions -- ultimately regaining her health.

Kristine Brown, RH(AHG)
Council RH Member

Kristine Brown, RH (AHG) has a growing client practice, and teaches locally and around the country. Based in Troy Illinois, Kristine is the author/illustrator/creator of the children’s online monthly award-winning PDF Herbal Roots zine since 2009. She creates kid’s programming, including programs at various conferences and co-creates the Herbal Activity Hub at the occasional AHG Symposium.

Kristine also makes and sells all natural handmade goat milk soaps, other herbal body care products, homeschools her 7th and 9th grade children and spends a great deal of her time drawing plants.

Mary Colvin, RH(AHG)
Council RH Member

Mary is a Registered Herbalist with the American Herbalist Guild, a member of the American Botanical Council and corporate member of United Plant Savers.  She owns Ancestral Herbology, LLC located in Wakeman, Ohio and is dedicated to the education of her clients, students, and local community.  Along with being an herbal and reiki practitioner, she is a formulator for Sprigs Herbals with 15 formulas on the market and an author of many articles in Sprigs magazine, Motherhood magazine, and Living Healthy magalog.  She continues to inspire others in herbalism while furthering her own knowledge on a daily basis.

Ellen Kamhi PhD, RN, AHG(RH), AHN-BC
Council RH Member

I started on my herbal path when my Greek grandmother, taught me about gathering medicine in her garden, along with divination using dried tea leaves. In 1964, when I fell off a horse, and was told I would need surgery. I went to the library and was amazed to find in the card catalogue a vast array of information about natural healing for broken bones-including horsetail grass, knitbone (Comfrey), and parsley. When I returned to the surgeon, he was surprised by my quick recovery, but stated that my methods were just ‘old wives tales.’ That was a defining moment! I knew my life path would be to track down all the medicinal folklore I could, and share the information with everyone. My focus is multi-cultural. I set off to find traditional healers, and record their ancient knowledge. I lived in Mexico in a palapa (grass shack, dirt floor) for years studying with curanderos, and started an off the grid farm in Bisbee Arizona with my African-American mate, where my children (in their 40’s now) were born. I was thrilled to discover the American Herbalist Guild at its inception, and presented at the first conference, at a hot springs in California, which included lots of plant knowledge and skinny dipping as well! My herbal path continues and includes radio shows (Herbally Yours), many books, (The Natural Medicine Chest), and teaching Botanical Pharmacognosy at a medical school. I pursued advanced degrees in teaching and nursing specifically to validate the herbal knowledge that I have been honored to accumulate. I am currently the Vice President of the Long Island Chapter of AHG.

Erica Kuo, RH(AHG)
Council RH Member

Erica Kuo, RH (AHG) is a certified Master Gardener (Montana State University, first  focusing western herbs Registered Herbalist (American Herbalists Guild  in Taiwan and China . She worked as a healthcare journalist for 8 years and held Master Degree of Communication Studies at University of Leeds in UK. She also had 7 years of experience in NGO such as Cancer Patient Foundation and Pharmacists Association of Taiwan. At that time, she earned scholarship from Taiwan government to study NGO management at Portland State University. She has had passion to devote herself to herb education. She will contribute her PR, NGO knowledge to AHG for fundraising, project grant application, and advocacy.

Ashley Litecky Elenbaas, RH(AHG)
Council RH Member

Ashley Litecky Elenbaas is a Clinical Herbalist and owner of Sky House Yoga, a donation-based wellness collective in Silver Spring, Maryland. Ashley holds an MS in Clinical Herbalism from Maryland University of Integrative Health, where she graduated in 2008 and is a Registered Herbalist (RH) with the American Herbalists Guild. Ashley's passion for plant medicine and her affinity to myth and story started at a young age. She studied plant medicine and myth in the rainforests of Australia, central Costa Rica, and the mountains of North Carolina. Ashley is on the teaching staff at George Washington University, and has presented at the National Institute of Health (NIH) and is currently the facilitator and host for the Evolver Herbal Learning Labs, an international online classroom that hosts professional herbalists from across the world.

Her early years of studying herbal medicine were spent working on biodynamic farms and summer internships as a garden hand. From 2003 – 2006 she worked on staff at the Maryland University of Integrative Health (MUIH) as an admissions counselor educating and enrolling prospective students into graduate programs. Ashley is a self-motivated worker, cheerful, and is an active advocate of the plants and the people who protect them.  Her days are spent managing the Deep Green Herbal Apothecary, seeing clients, leading 20 amazing herbal apprentices, hosting online herbal webinars, and teaching donation-based yoga in her community.

Ashley cherishes the work of Matthew Wood, Stephen Buhner, Susun Weed, Simon Mills, and Kiva Rose and hopes one day to have a garden like Rosemary Gladstar.

Tenby Owens, RH (AHG)
Council RH Member

Tenby lives in Hawthorne, Wisconsin. She has been a professional Guild member since 1999. She trained in Chinese herbal medicine and pulse diagnosis at the Leon Hammer Dragon Rises Institute in Florida and studied western herbs with Peter Holmes. Tenby had a clinical practice for humans from 1994 - 2004 including work at the St. Luke’s Hospital Holistic Clinic in Duluth, Minnesota. She started Ariel Botanical Company in 1996 ( making herb formulations for companion animals and ruminants. Tenby enjoys gardening and wildcrafting. She lives with her partner of 12 years and seven rescue four-leggeds.

Kourtney Sims
Council General Member

Dr. Kourtney Sims (aka Dr. Kourtney) is a Georgia native who has become a Texas transplant. She received her undergraduate training from Xavier University of Louisiana and stayed in New Orleans for medical school training at Tulane Medical School. After deciding on a career in Obstetrics and Gynecology she and her family moved to Houston, Texas. Dr. Sims completed her OB/Gyn training at University of Texas Houston and has been in private practice since graduation. She is currently board certified by the American Board of Obstetrics and Gynecology and is a fellow of the American College of Obstetrics and Gynecology (ACOG). She was also the FIRST female physician in Houston outside of the medical center who was certified by the North American Menopause Society. Currently Dr. Sims is a member of several professional groups including the Harris County Medical Society, ACOG, the Institute for Functional Medicine and the Texas Medical Association in addition to her membership in AHG.