[Willows: The Genus Salix East of the Cascade Mountains of Oregon and Washington]

MacKenzie's Willow

Salix prolixa

Synonyms: Salix cordata, Salix cordata var. mackenzieana, Salix eriocephala ssp. mackenzieana, Salix eriocephala var. mackenziana, Salix mackenzieana, Salix mackenzieana var. mackenzieana, Salix mackenzieana var. macrogemma, Salix rigida, Salix rigida ssp. mackenzieana, Salix rigida var. mackenzieana, Salix rigida var. macrogemma

Female catkin of MacKenzie’s Willow: Salix prolixa (Synonyms: Salix cordata, Salix cordata var. mackenzieana, Salix eriocephala ssp. mackenzieana, Salix eriocephala var. mackenziana, Salix mackenzieana, Salix mackenzieana var. mackenzieana, Salix mackenzieana var. macrogemma, Salix rigida, Salix rigida ssp. mackenzieana, Salix rigida var. mackenzieana, Salix rigida var. macrogemma)

Female catkin of what appears to be MacKenzie's willow as seen along the eastern boundary fence along the park access road to the Fields Springs South trailheads..........June 11, 2013.

Ventral leaf surfaces of MacKenzie’s Willow: Salix prolixa (Synonyms: Salix cordata, Salix cordata var. mackenzieana, Salix eriocephala ssp. mackenzieana, Salix eriocephala var. mackenziana, Salix mackenzieana, Salix mackenzieana var. mackenzieana, Salix mackenzieana var. macrogemma, Salix rigida, Salix rigida ssp. mackenzieana, Salix rigida var. mackenzieana, Salix rigida var. macrogemma) - Female catkins and dorsal leaf surfaces of MacKenzie’s Willow: Salix prolixa (Synonyms: Salix cordata, Salix cordata var. mackenzieana, Salix eriocephala ssp. mackenzieana, Salix eriocephala var. mackenziana, Salix mackenzieana, Salix mackenzieana var. mackenzieana, Salix mackenzieana var. macrogemma, Salix rigida, Salix rigida ssp. mackenzieana, Salix rigida var. mackenzieana, Salix rigida var. macrogemma)

Female catkins and lower (left) and upper (right) leaf surfaces of what appears to be MacKenzie's willow as seen along the eastern boundary fence along the park access road to the Fields Springs South trailheads..........June 11, 2013.
Paul Slichter