Achnatherum robustum
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| Sleepy grass | ||||||||||||||
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 Line drawing of Achnatherum robustum from the USDA PLANTS database.
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| Achnatherum robustum (Vasey) Barkworth[1] |
Achnatherum robustum, commonly known as Sleepy grass, (synonyms Stipa robusta, also 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). [2]
Its diacetone alcohol ingredient has a mildly toxic effect on cattle and livestock, causing drowsiness.
[edit] References
- ^ USDA; NRCS (2007). The PLANTS Database. National Plant Data Center. Retrieved on 2007-08-07.
- ^ Petroski RJ et al. Alkaloids of Stipa robusta PMID 1344912
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