Covers California, Oregon, and Washington state. A Guide to Sierra Nevada Wildflowers by Glenn Keator, PhD, illustrated by Valerie R. Winemiller. The Sierras include many habitats, from the high desert of the dry eastern slope, to the chaparral, meadows, and forests of the western slopes, and the harsh environment of the rocky alpine zone, so a wide variety of plants occurs in the area covered by this book. Illustrated with clear line drawings. Covers native and commonly introduced trees of the U.S. and Canada east of the Rockies and north of Florida.
Line drawings point out important features of plant structure.
This is the one to put in your pocket and take for a walk in the woods. A Manual for Identifying Deciduous Trees in Winter , by May Theilgaard Watts and Tom Watts. Describes parts of the twig and their function. Line drawings show twigs, buds, fruits, shape, habitat, and range of trees. Covers US and Canada east of the Rocky Mountains, except Florida.