Description: English: Equisetum laevigatum at Wind Cave National Park, South Dakota, USA. Date: 16 July 2007. Source: U.S. National Park Service, Wind Cave National Park, South Dakota, cropped to a 2:3 ratio by the uploader. Author: Jim Pisarowicz, National Park Service. Other versions: (uncropped version).
Description: Smooth horsetail (Equisetum laevigatum), Horsetail family (Equisetaceae). Johnson Lakes Canyon, Kane County, Utah. Date: 28 May 2016, 09:01. Source: 2016.05.28_09.01.26_IMG_6021. Author: Andrey Zharkikh from Salt Lake City, USA.
Description: Equisetum laevigatum, near Pool Creek in Dinosaur National Monument, 40.498,-109.013, Moffat County, Colorado, 18 Jun 2008. Date: 18 June 2008, 09:09. Source: Equisetum laevigatum. Author: Patrick Alexander from Las Cruces, NM.
Description: Smooth horsetail (Equisetum laevigatum), Horsetail family (Equisetaceae). Tony Grove in Logan Canyon, Utah. Date: 9 July 2016, 09:46. Source: 2016.07.09_09.46.58_DSC05170. Author: Andrey Zharkikh from Salt Lake City, USA.
Description: Equisetum laevigatum, near Pool Creek in Dinosaur National Monument, 40.498,-109.013, Moffat County, Colorado, 18 Jun 2008. Date: 18 June 2008, 09:12. Source: Equisetum laevigatum. Author: Patrick Alexander from Las Cruces, NM.
Description: Smooth horsetail (Equisetum laevigatum), Horsetail family (Equisetaceae). Tony Grove in Logan Canyon, Utah. Date: 9 July 2016, 09:46. Source: 2016.07.09_09.46.49_DSC05169. Author: Andrey Zharkikh from Salt Lake City, USA.
Description: Smooth horsetail (Equisetum laevigatum), Horsetail family (Equisetaceae). Tony Grove in Logan Canyon, Utah. Date: 9 July 2016, 09:47. Source: 2016.07.09_09.47.20_DSC05171. Author: Andrey Zharkikh from Salt Lake City, USA.
Description: Equisetum laevigatum, near Pool Creek in Dinosaur National Monument, 40.498,-109.013, Moffat County, Colorado, 18 Jun 2008. Date: 18 June 2008, 09:11. Source: Equisetum laevigatum. Author: Patrick Alexander from Las Cruces, NM.