Penstemon fendleri

Penstemon fendleri, also known as plains penstemon or Fendler's penstemon, is a moderate sized flowering plant from the southwestern US and small part of northern Mexico.

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Plains penstemon grows one or more flowering stems, which can grow 15 to 60 centimeters (6–24 in) tall, but are most often 20 to 55 cm (8–22 in). The stems are thick and hairless. The species has both basal leaves and cauline, those attached to the stems, all of them hairless. The lower leaves on the stems and the basal ones measure 2–10 cm (1–4 in) long and 0.4–2.4 cm wide. They are spatulate to oblanceolate, shaped like a spoon or a reversed spear head, with tapered bases. Plains penstemon has narrow, tubular flowers that are blue-violet and curve slightly. The flowers are hairless on the outside and violet to reddish-purple floral guides pointing into the flower and sometimes have sparse white hairs on the lower surface. The lower three lobes spread quite widely. The flowers are in three to twelve groups, each quite distinctly separated. Each group has two branching points of attachment, usually with two or three flowers, but occasionally as many as five. Flowering is usually in March or June, but occasionally as late as July.