Alnus rhombifolia

Alnus rhombifolia, commonly known as California alder, is a deciduous tree belonging to the Betulaceae family. Native to regions including California, Idaho, Montana, Oregon, Washington, and parts of Mexico’s northwest, this tree is adapted to thrive in moist or wet environments with medium to heavy clay soil. It requires full sun to partial shade for optimal growth and can reach a height of 12 meters. The flowers and inner bark of Alnus rhombifolia are edible; the flowers can be eaten raw or used to make a light tea, while the inner bark is typically prepared by peeling it from the tree and consumed in small quantities either dried or fresh. This tree is valued for its utility, serving as a weaving material, dye, fire starter, and source of tannin. Additionally, it can be used as a nitrogen fixer and provides lumber. While not medicinal, it is an important resource for various practical applications and can be cultivated in hardiness zones 8-11. For cultivation, ensure the plant receives adequate moisture; it grows best where water is readily available. Propagation can be achieved through seeds or cuttings from inner bark and flowers.