Characteristics: intermediate between the parents.
Similar species: No information at this time.
Flowering: April
Habitat and ecology: This hybrid grows in sandy soil and is rarely found far from Lake Michigan.
Occurence in the Chicago region: native
Notes: Populus species as a whole are subject to many diseases and insect pests, such as canker and tent caterpillars, which often kill the tree or make it unattractive. These risks, in conjunction with a water-hungry root system, have made the Populus species less desirable for landscape use.
Etymology: Populus is the Latin word for poplar. Jackii honors John George Jack (1861-1949), a Canadian dendrologist working in Boston, Massachusetts.
Rare natural hybrid of nos. 5 [Populus balsamifera L.] and 9 [Populus deltoides Marshall], cult. as a single pistillate clone. (P. gileadensis; P. candicans, misapplied)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
