Publication: N. Amer. Sylv. 1: 69. 1842.

Origin: Native

selected vouchers: WTU

Notes: FNA7: "Variety brachycarpa forms natural hybrids with Salix arizonica, S. barclayi, S. boothii, S. candida, S. chlorolepis, S. glauca var. villosa, and S. planifolia.

Placement of specimens from Anticosti Island, Quebec, and North Point, James Bay, Ontario, with densely villous branchlets and relatively short petioles, thought to be hybrids with Salix glauca var. cordifolia, is dubious.

Variety brachycarpa × Salix candida (S. ×argusii B. Boivin) is infrequent in Manitoba, Quebec, and Saskatchewan.

Variety brachycarpa × Salix chlorolepis (S. ×gaspeensis C. K. Schneider) resembles var. brachycarpa but has leaves only slightly pilose and ovaries with hairs only on the beaks (G. W. Argus 1965).

Variety brachycarpa × Salix glauca var. villosa (S. ×wyomingensis Rydberg) is a frequent hybrid in southern Rocky Mountains. It is characterized by stipes 0.3 mm or longer, long-cylindrical catkins, ovaries with relatively long beaks, petioles more than three times the length of buds, and leaves sparsely hairy. The extent and nature of this hybridization needs to be studied (G. W. Argus 1965).

Variety brachycarpa × Salix planifolia "var. monica" occurs in Steens Mountains, Oregon."

References: (none)