General: Singleleaf Ash (Fraxinus anomala) is a modest, round-topped shrub or short tree of wet areas. The leaves usually are entire but may have two leaflets (in contrast with other Ash trees that have compound leaves). Seeds are produced in bunches that hang from small branchlet; each seed has a wing that catches in the wind. Ripe fruit short (13-24 mm including the wing). The bark is gray with many, shallow furrows. Trees bisexual.

Singleleaf Ash are found along washes, rivers, and other wet areas in the Upper Sonoran (Pinyon-Juniper Woodland) and Transition (Yellow Pine Forest) life zones.

Around Las Vegas, Singleleaf Ash are relatively uncommon, but they can be found in the moist, higher-elevation canyons and around some springs in Red Rock Canyon NCA.

Family: Olive (Oleaceae).

Plant Form: Upright, branching shrub or small tree.

Height: To about 18 ft.

Trunk: Stems many. Gray with many, shallow furrows in the bark.

Leaves: Leaves entire, oval (occasionally compound, if so, leaflets 3).

Flowers: Not showy, has no petals. Tip of seed pedicel slender (not expanded).

Seeds: Seeds are produced in bunches that hang from small branchlets; each seed has a wing (sumara) that catches in the wind. Ripe fruit short (13-24 mm including the wing); wing short relative to the seed.

Distribution: California east to Colorado and New Mexico.

Habitat: Washes, river corridors, springs.

Elevation: About 4,000 to 8,000 feet.

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