The standard variety of Quercus fusiformis is native to southern Oklahoma through Texas into Mexico (2). The ‘Joan Lionetti’ cultivar was developed by Civano Nursery in Tucson and was named after the founder of Trees for Tucson (1). It was specifically selected for propagation because it grows faster than other cultivars and is adapted to the arid conditions of the desert southwest (1). All specimens of this cultivar are produced by cuttings, which ensures the continuity of these traits (1). The genus name Quercus is the Latin word for “oak.” The specific epithet fusiformis means “spindle-shaped,” referring to the shape of the acorns (2,4).

This cultivar of Quercus fusiformis is a good choice for southwestern landscapes. It grows in a compact, upright form with a symmetrical canopy that allows it to be planted in smaller spaces (1). It is accepting of high soil pH and is drought tolerant (1). Soils should be well drained, however, as the tree will not do well in clayey or poor-draining soils (3). The tree is hardy down to at least 0 °F (1). It will usually maintain its leaves throughout the winter, although it may drop some in the spring to make way for new growth (1). Its short trunk and gnarled branches often develop a picturesque appearance (2).