Field, book, of, western, wild, flowers, New York, 1915, identification, west us, wildflowers, Margaret Neilson Armstrong, Margaret Neilson Armstrong, Penstemon torreyi, scarlet penstemon, Penstemon breviflorus, yawning penstemon, taxonomy: family = Scrophulariaceae, Penstemon barbatus ssp torreyi, Torrey's penstemon, Keckiella breviflora ssp breviflora, bush beardtongue, women, in, science, This illustration features two distinct flowering plants, known as Scarlet Penstemon (Penstemon Torreyi) and Yawning Penstemon (Penstemon breviflorus). The Scarlet Penstemon is characterized by its vibrant red tubular flowers and elongated stems, while the Yawning Penstemon displays more delicate blooms with a slightly downward-facing shape. Both plants showcase slender green leaves along their stems, providing a botanical contrast to the detailed depiction of the flowers. The illustration highlights the unique features and growth patterns of each species, aiding in their identification and appreci