Fraxinus dipetala, the California ash or two-petal ash, is a species of ash native to southwestern North America in the United States in northwestern Arizona, California, southern Nevada, and Utah, and in Mexico in northern Baja California. It grows at altitudes of 100–1,300 m. It is a deciduous shrub or small tree growing to 7 m tall, with cylindric to four-angled stems. The leaves are 5–19 cm long, light to dark green, with three to seven (rarely nine) leaflets 1–7 cm long, thick, and serrated along the margins. The flowers have two white lobe-shaped petals 2.5–4 mm long, and are sweetly scented, hanging in fluffy clusters; unlike many ashes, they are bisexual, not dioecious. The fruit is a long, flat samara 2–3.2 cm long and 5–9 mm broad, green when immature and hanging in bunches. References dipetala Trees of the Southwestern United States Trees of Baja California Natural history of the California chaparral and woodlands Flora of California Flora of the Sierra Nevada (United States) Natural history of the California Coast Ranges Natural history of the Peninsular Ranges Natural history of the San Francisco Bay Area Natural history of the Santa Monica Mountains Natural history of the Transverse Ranges Plants described in 1839 Flora without expected TNC conservation status