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Penstemon grandiflorus
large beardtongue Plantain Family
Penstemon grandiflorus Plantaginaceae
common names
  large beardtongue
  largeflowered penstemon
accepted scientific name
  Penstemon grandiflorus Nutt.
rules for finding collection records
  Penstemon bradburii (9)
  Penstemon grandiflorus (426)
family name
Image Author: ©2013 Brett Whaley
Image License: CC BY-NC
Image Source
Category: Wildflowers
Flowers: Five petals
Petal colors: color color
Flower size is 1.5 to 2. inches
Leaf: Opposite
Plant Observed 2nd week of May thru 2nd week of September

How Likely at this Location (19%)
Name Match (100%)
Plant Showiness (72%)
Links to Plant Photos
U of Michigan Herbarium (13)
J. Reveal (11)
Cal Photos (19)
Wikimedia Commons (6)
Kansas Native (9)
base map where plant found
mag select

grid lines base