The yellow capsules are infected by Taphrina johansonii, an ascomycete. The healthy capsules are green. · 4/21/2010 · Nashua River Rail Trail, Groton Center, Groton, Massachusetts ≈ 7 × 4½" (17 × 11 cm)
7/18/2017 · Tobyhanna State Park, Pennsylvania ≈ 7 × 4" (16 × 11 cm)
8/31/2014 · New Mexico
7/18/2017 · Tobyhanna State Park, Pennsylvania ≈ 6 × 4" (14 × 10.0 cm)
10/23/2010 · Warwick Mills, New Ipswich, New Hampshire ≈ 4 × 6' (1.2 × 1.8 m)
8/31/2014 · New Mexico
Populus tremuloides Michx.var. intermedia Victorin
Populus tremuloides Michx.var. magnifica Victorin
Populus tremuloides Michx.var. rhomboidea Victorin
Populus tremula L.ssp. tremuloides (Michx.)A.Löve&D.Löve
Populus aurea Tidestr.
Populus cercidiphylla Britton
Populus ×polygonifolia Bernard
Populus tremuloides Michx.var. aurea (Tidestr.)Daniels
Populus tremuloides Michx.var. cercidiphylla (Britton)Sudw.
Populus tremuloides Michx.var. vancouveriana (Trel.)Sarg.
Populus vancouveriana Trel.
Populus tremula L.ssp. tremuloides (Michx.)A.Löve&D.Löve
Populus tremuloides Michx.var. intermedia Victorin
Populus tremuloides Michx.var. magnifica Victorin
Populus tremuloides Michx.var. rhomboidea Victorin
Populus tremuloides Michx.var. intermedia Vict.
Populus tremuloides Michx.var. magnifica Vict.
Populus tremuloides Michx.var. rhomboidea Vict.
Populus tremula L.ssp. tremuloides (Michx.)Á.Löve&D.Löve
Populus tremuloides description by Thomas H. Kent, last updated 10 Jan 2021.