Single-leaf Ash
Lowell Ash
Fraxinus anomola
On a steep hillside well above wooded riparian habitat, Round Tree Canyon, s.e. Yavapai Co., Arizona. 9 May 2016.
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TREE: A small tree sometimes forming a copse of several small trees yielding another common name, Dwarf Ash. The young twigs are usually noticeably angled in cross-section.
RANGE: This tree tends to occur upslope from wooded riparian zones - on the steep canyon sides where a
fissure or ravine brings sufficient moisture.
FLOWERS: Dioeceous: male and female flowers appear on separate trees. No
petals.
FRUIT: Winged ash seeds have a much wider wing than those of velvet ash.
LEAVES: Populations vary considerably. Some have leaves with only one leaflet - per the common name - but others have five. The
upper surfaces are shiny, dark green.
UNARMED: no thorns
