Sp. Pl.1: 393. 1753,
Varieties 2 (2 in the flora).
Infection of Andromeda polifolia by species of the ascomycete genus Rhytisma Fries appears to result in leaves broadened and reddish, often not glaucous (A. L. Jacquemart 1998).
A hybrid of var. latifolia with var. polifolia [Andromeda ×jamesiana Lepage; A. polifolia var. jamesiana (Lepage) B. Boivin] is known from southern Nunavut and from the James Bay and southern Hudson Bay regions of Ontario and Quebec (J. Cayouette 1986); it is characterized by the abaxial surfaces of leaves being both glaucous and white-puberulent. Other specimens having abaxial surfaces of leaves both glaucous and puberulent are scattered through the range of A. polifolia.
|1||Leaf blades (1-)2-4 cm, abaxial surface white-glaucous (sometimes green), glabrous; corollas 5(-7) mm; corymbs 2-3(-4)-flowered, sometimes flowers solitary, erect or lax, on erect or ascending branchlets; pedicels 10-20 mm.||Andromeda polifolia var. polifolia|
|1||Leaf blades (2-)3-5 cm, abaxial surface not glaucous, white-hairy to white-velutinous; corollas 6(-8) mm; corymbs (2-)4-8-flowered, nodding, on curved branchlets; pedicels seldom more than 6-8 mm.||Andromeda polifolia var. latifolia|