Sleepy Grass


Sleepy Grass is Uncontrolled in the United States, however, it is not approved for human consumption. This is a gray area of the law because it contains, LSA, which is a Schedule III.

Addictive Potential: None

Emergency Room Visits Yearly: Unknown

Mandatory Minimum Sentence: None

Mechanism of Action: Partial agonist of the serotonin receptors



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).



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



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