[Beardtongues and Penstemons: The Genus Penstemon West of the Cascade Mountains of Oregon and Washington]

Davidson's Beardtongue, Davidson's Penstemon

Penstemon davidsonii var. davidsonii

Synonyms: Penstemon menziesii ssp. davidsonii, Penstemon menziesii ssp. thompsonii

Davidson's Penstemon, Davidson's Beardtongue: Penstemon davidsonii var. davidsonii (Synonyms: Penstemon menziesii ssp. davidsonii, Penstemon menziesii ssp. thompsonii)

The photo above shows a close-up of the flower of Davidson's penstemon as seen on the climber's trail just north of (and about the same elevation as) High Camp on the north side of Mt. Adams.........August 2, 2003.

Davidson's Penstemon, Davidson's Beardtongue: Penstemon davidsonii var. davidsonii (Synonyms: Penstemon menziesii ssp. davidsonii, Penstemon menziesii ssp. thompsonii)

Davidson's penstemon as seen amongst cinders on Little Mt. Adams........July 17, 2006 Note the numerous glands on the calyx and the gland-free outer surface of the corolla.

Davidson's Penstemon, Davidson's Beardtongue: Penstemon davidsonii var. davidsonii (Synonyms: Penstemon menziesii ssp. davidsonii, Penstemon menziesii ssp. thompsonii)

The photo above shows an attractive mat of Davidson's penstemon growing in the lee of a large rock as seen along the Highline Trail #114 at about 6800' on the northern slopes of Mt. Adams........July 10, 2005.

Davidson's Penstemon, Davidson's Beardtongue: Penstemon davidsonii var. davidsonii (Synonyms: Penstemon menziesii ssp. davidsonii, Penstemon menziesii ssp. thompsonii)

The photo above shows Thompson's paintbrush as seen along the Highline Trail #114 at about 6800' on the northern slopes of Mt. Adams.......July 10, 2005. This variety of Davidson's penstemon has leaf blades with rounded tips.

Davidson's Penstemon, Davidson's Beardtongue: Penstemon davidsonii var. davidsonii (Synonyms: Penstemon menziesii ssp. davidsonii, Penstemon menziesii ssp. thompsonii)

The photo above shows Davidson's penstemon as seen high along the climber's trail on the moraine above the head of Hell Roaring Meadowstheat the southeast side of Mt. Adams.........August 4, 2001.

Paul Slichter