Diamond-leaf Willow, Tea-leaf Willow, Tea-leaved Willow, Plane-leaf Willow
Salix planifolia
Synonyms: Salix monica, Salix pennata, Salix phylicifolia, Salix phylicifolia ssp. planifolia, Salix phylicifolia var. monica, Salix phylicifolia var. pennata, Salix phylicifolia var. planifolia, Salix planifolia var. monica, Salix planifolia var. nelsonii, Salix planifolia var. pennata

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- 
Diamond-leaf willow as seen at Parachute Meadows, Okanogan-Wenatchee National Forest........July 29, 2018.
Paul Slichter