Appearance
''Penstemon heterodoxus'' is a perennial herb growing stems upright 65 centimeters in maximum height or in a low, spreading mat. The leaves are lance-shaped to oblong, the upper pairs sometimes clasping the stem.The glandular inflorescence is made up of 1 to 6 separate clusters of dark purple-blue tubular flowers each just over a centimeter long. The outer surface of the flower generally has glandular hairs, and on the inside there are hairs on the floor of the flower mouth and on the staminode.
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