Field book of western wild flowers, New York, 1915, identification, west US, wildflowers, Margaret Neilson Armstrong, Margaret Neilson Armstrong, women in science, The illustration features various species of fleabane flowers, showcasing their distinct characteristics. Each plant is labeled with its common and scientific names: 'Spreading Fleabane' (E. divergens), 'Whip-lash Fleabane' (E. flagellaris), and 'Rayless Fleabane' (E. concinnus var. aphanetis). The delicate lines depict the flower structures and leaves, highlighting the diversity in their form and growth patterns, set against a simple background. This botanical representation serves as a visual guide for identification and study of these wildflowers.