willow tree vs Salix alba caerulea

Other hyponyms of willow tree include osier, Huntingdon willow, Salix alba, white willow, Salix alba sericea, Salix sericea, silky willow, silver willow, cricket-bat willow, arctic willow, Salix arctica, Babylonian weeping willow, Salix babylonica, weeping willow, Salix blanda, Salix pendulina, Salix pendulina blanda, Wisconsin weeping willow, pussy willow, Salix discolor, sallow, almond-leaves willow, peach-leaved willow, peachleaf willow, Salix amygdaloides, hoary willow, sage willow, Salix candida, brittle willow, crack willow, Salix fragilis, snap willow, prairie willow, Salix humilis, dwarf willow, Salix herbacea, gray willow, grey willow, Salix cinerea, arroyo willow, Salix lasiolepis, Salix lucida, shining willow, black willow, Salix nigra, swamp willow, bay willow, laurel willow, Salix pentandra, balsam willow, Salix pyrifolia, creeping willow, Salix repens, Salix sitchensis, silky willow, Sitka willow, dwarf gray willow, dwarf grey willow, sage willow, Salix tristis, bearberry willow, Salix uva-ursi.