Main sources: Petrides, George & Olivia Petrides, 1992, A Field Guide to Western Trees, pp., Houghton-Mifflin; Zimmerman, Robert, 1969, Plant Ecology of an Arid Basin Tres Alamos-Redington Area Southe

Family: Oleaceae Native To: North America Native Habitat: Stream and wash banks of southwest mountains and desert grassland Growth Habit: Large deciduous tree Flowering: Green, inconspicuous sprin

Edward F. Gilman and Dennis G. Watson2 Introduction This fast-growing, deciduous, native North American tree reaches a height of 30 to 50 feet, depending upon cultural conditions. It is capable of

Here in Tucson, Velvet Ash (Fraxinus velutina) trees are common in large, sandy washes with underground water and along streams in rocky canyons. These riparian trees only grow in locations where they

Tree with open, rounded crown of spreading branches. Height is 40 ft. (12 m). Diameter is 1 ft. (0.3 m). Leaves are 3–6 in. (7.5–15 cm) long, pinnately compound. They are lance-shaped to elliptica