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Allium wallichii, commonly known as Jimbur or Himalaya onion •
Apostasia wallichii, a species of orchid •
Bulbophyllum wallichii, a species of orchid •
Castanopsis wallichii, a species of plant in the family Fagaceae •
Dioscorea wallichii, a climber in the family Dioscoreaceae •
Diospyros wallichii, a tree in the family Ebenaceae •
Dombeya wallichii, commonly known as pinkball, pink ball tree, or tropical hydrangea •
Horsfieldia wallichii, a species of plant in the family Myristicaceae •
Ligusticum wallichii, a flowering plant in the carrot family known for its use in traditional Chinese medicine •
Memecylon wallichii, a species of plant in the family Melastomataceae •
Rhododendron wallichii, a rhododendron species •
Schima wallichii, an Asian species of evergreen trees belonging to the tea family, Theaceae •
Sorbus wallichii, a species of plant in the family Rosaceae •
Strobilanthes wallichii, commonly known as Kashmir acanthus, hardy Persian shield, wild petunia, or kandali •
Valeriana wallichii, an herb of the family Valerianaceae, also called Indian valerian or tagar-ganthoda •
Widdringtonia wallichii, commonly known as Clanwilliam cedar or Clanwilliam cypress (correct name Widdringtonia cedarbergensis) ==Animals==