Bull. 420.] Populus angustifolia, Populus balsamifera, Populus deltoides, Populus fremontii, Populus grandidentata, Populus heterophylla, Populus tremuloides
29 KB (2,619 words) - 23:31, 5 November 2020
deltoides), P. ×jackii Sargent (P. balsamifera × P. deltoides), and P. ×acuminata Rydberg (P. angustifolia × P. deltoides), are distinguished from P. deltoides
10 KB (1,262 words) - 18:16, 6 November 2020
hybridization and backcrossing between P. balsamifera and southern P. deltoides subsp. deltoides. Most wild hybrids have P. deltoides subsp. monilifera as the cottonwood
9 KB (1,196 words) - 23:34, 5 November 2020