"Alpine flora of the Canadian Rocky Mountains" by Stewardson Brown is a scientific publication written in the early 20th century. It is an illustrated botanical manual and field guide to the alpine and subalpine plants of the Canadian Rockies and Selkirks, with identification keys, concise descriptions, habitats, and notes on distribution. The work focuses on plants along the Canadian Pacific Railway corridor between Banff and Glacier, and is designed for naturalists and travelers seeking to recognize the region’s trees, shrubs, ferns, and wildflowers. The opening of the work presents a preface outlining scope and audience, distinguishing the drier, cold-adapted flora of the Rockies from the moisture-loving Selkirks, and noting that grasses, sedges, and willows are omitted to keep the guide practical; it also explains the arrangement by families, with keys and numerous new illustrations. A glossary and a comprehensive family key follow, leading into detailed species accounts that begin with ferns and their allies (e.g., moonworts Botrychium, maidenhair Adiantum, bracken, horsetails Equisetum, club-mosses Lycopodium, Selaginella), then conifers and other woody plants (whitebark pine, Douglas-fir, mountain hemlock, Alberta spruce, junipers, giant cedar, yew). Subsequent sections introduce early-blooming monocots and allies, such as western skunk cabbage, bunch-flowers (Veratrum, Zygadenus, Tofieldia), lilies (mountain-lily, snow lily), and lily-of-the-valley relatives (Clintoni…
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