Overview:
Sleepy grass, otherwise known as Achnatherum robustum, Stipa robusta, and Stipa vaseyi subsp. robusta) is a perennial plant in the Poaceae or Grass Family. It grows on dry soil in the U.S. Midwest, ranging from South Dakota, Nebraska and Kansas, Wyoming, Colorado and New Mexico to Texas and Arizona. When infected with an acremonium fungus, it contains lysergic acid amide (LSA).
Research:
Hallucinogens and dissociative agents naturally growing in the United States - by John H. Halpern
Alkaloids of Stipa robusta (sleepygrass) infected with an Acremonium endophyte - by Petroski, Powell, and Clay
E-books:
The NeuroSoup Trip Guide - The free e-book version of The Neurosoup Trip Guide is now available online. It contains chapters on Choosing the Right Hallucinogen; Set, Setting, and Preparation for a Trip; Tips for Tripsitters; Aspects of the Entheogenic Experience; Working with Difficult Experiences; Integration; and References and Recommended Reading.
More Info:
Trip Reports
Recommended Reading