osadha natural health, llc

Herbalism, medicinal mushrooms, foraging 

Anna marija helt, Ph.D 


practicing since 2009

~HERBALISM In durango or wherever you are~


About Marija

Marija grew up running wild in the woods. (Well, at least ’til sunset.)  She’s a research scientist-turned-clinical herbalist, practicing since 2009.  Marija studied botanical medicine with Pam Fisher at the Berkeley Herbal Center (formally the Ohlone Center of Herbal Studies), with Kathi Keville at the Green Medicine Herb School, and for shorter stints with other herbalists. … (read more)

Book an Herbal Consultation to:

  • Work on optimal health and wellness through a simple, personalized approach that’s doable and doesn’t break the bank.
  • Work with an experienced herbalist with over 12 years in clinical practice and another dozen years of experience in biomedical research.
  • Become acquainted with the “plant allies” and foods that best fit you.



Durango Online Herbarium is up & contains 60+ fungal species. Plants are next...

I’m uploading over a decade’s worth of wild plant and mushroom photos, along with where they’re found and some additional basic info. I’ve started with fungi, and next will be plants. For now, entries are arranged alphabetically. Keep checking back to see the new uploads. You can use the search feature in the upper right corner to look for specific mushrooms or plants.  Note that many of the mushrooms and plants featured are not edible or medicinal so don’t assume you can stick ’em in your mouth just because they’re included in the herbarium.

Please contact me if you’d like to receive monthly class notifications.


Upcoming Classes 

Click HERE for more info or to register.

MEDICINAL MUSHROOM ONLINE CLASSES Wed evenings 7-8pm Mountain Time. Aug 16 Mushrooms for gut health, Sept 13 Mushrooms for immune imbalances, Oct 11 Mushrooms for brain health 

PLANT & MUSHROOM WALKS   September 15th at Junction Creek.  Don’t wait to register, groups are limited in size.       

GUT INFLAMMATION, HORMONE IMBALANCE, & MOOD Live online. Saturday February 10, 2024, 10am-1pm Mountain Time.                                   

ELEVEN CLASS RECORDINGS FROM 2022 ARE NOW AVAILABLE ON THE CLASSES PAGE.  Miss a class that you wanted to join last year?

NEW FALL, WINTER, SPRING OFFERINGS  Will be posted on September 18th!


2023 Herb & Mushroom Walks!!!!

I have 5 plant and mushroom walks scheduled. Please visit classes page for more info!


Want to learn about wild foods & medicines?

Sign up for 1-on-1 lessons whether you live in Durango, Dallas, or Delaware!  Check for upcoming classes and workshops that are in person or live-streamed.  Dive into 12 years worth of free articles and videos on herbalism, “mushroomism” and botanical aromatics.


Proud member of:

Articles & Videos