This species, described from Florida, is represented in cultivation by the following Californian variety:
var. crenulata (Greene) Jeps. P. crenulata Greene Western Hop Tree. – A deciduous shrub or small tree up to 15 ft high, with trifoliolate leaves much smaller than those of P. trifoliata. Leaflets 11⁄4 to 21⁄2 in. long, narrowly ovate to narrowly obovate, the terminal one the longest, downy beneath, entire or more or less crenately toothed. Flowers in small terminal corymbs. Fruits about 1⁄2 in. across. It differs from P. trifoliata in its narrower leaves, larger flowers, and narrow fruit-wing. Introduced to Kew in 1893. Not so notable a plant as its eastern ally.