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 two botanical specimens labeled as 'Creek Senecio' (Senecio Douglasii) and 'Squaw-weed' (Senecio perplexus var. dispar). The Creek Senecio is depicted with slender, upright stems bearing clusters of small, daisy-like flowers that showcase a variety of petal shapes and sizes. The foliage is elongated and jagged, contributing to the plant's distinct outline. Adjacent to it, the Squaw-weed is illustrated with a more robust, leafy stalk, characterized by wider leaves and a slightly different floral arrangement. Both plants are rendered in fine detail, emphasizing their unique botanical features and textures, showcasing the diversity within the Sen