Summary[edit] Description: English: Timberline penstemon (Penstemon davidsonii), closeup of flowers. On bank, S shore of Steelhead Lake, 20-Lakes Basin, Hoover Wilderness, California. Date: 16 August 2011. Source: Own work. Author: Dcrjsr.
Summary[edit] Description: Penstemon davidsonii, trail up Mount Thielsen, 26 Jul 2008. Date: 26 July 2008, 11:50. Source: Penstemon davidsonii. Author: Patrick Alexander from Las Cruces, NM.
Summary[edit] Description: Penstemon davdisonii, Mount Thielsen, north of Crater Lake in the southern Cascade Mountains, 43.151 -122.072, Douglas County, Oregon, 26 Jul 2008. Date: 26 July 2008, 11:49. Source: Penstemon davidsonii. Author: Patrick Alexander from Las Cruces, NM.
Summary[edit] Description: English: Timberline penstemon (Penstemon davidsonii). On bank, S shore of Steelhead Lake, 20-Lakes Basin, Hoover Wilderness, California. Date: 16 August 2011. Source: Own work. Author: Dcrjsr.
Summary[edit] Description: It was labeled as Penstemon davidsonii, but I am not sure it is correct. Planted in my front yard, Cottonwood Heights City, Utah. Date: 16 November 2016, 10:24. Source: 2016.11.16_10.24.53_IMG_8003. Author: Andrey Zharkikh from Salt Lake City, USA.