Steyermark's Flora of Missouri is an account of Missouri's vascular flora, including the pteridophytes, gymnosperms, and flowering plants growing spontaneously in the state.
The second of three volumes of the revised edition of Steyermark's Flora of Missouri contains treatments of the first half of the dicots, comprising 906 species in 45 plant families. It includes 193 full page plates of black and white drawings illustrating nearly all of the plants and a distributional map for each species. Among the plants featured in the book is the sunflower family, Asteraceae, the largest family in the state s flora, with 104 genera and 329 species. Also included are treatments of other large and economically important groups, such as the carrots, Apiaceae, mustards, Brassicaceae, and pinks, Caryophyllaceae. Each species is described in detail, and there are lengthy notes on taxonomy, distribution, plant uses, and conservation concerns. The Flora of Missouri Project is a collaboration between the Missouri Botanical Garden and the Missouri Department of Conservation. One of its main goals has been a revisioin of the late Julian Steyermark s exemplary manual, Flora of Missouri.