The genus of plants Saussurea, some adapted to growing in extreme high-alpine climates, is named after him and his plant-physiologist son Nicolas-Théodore de Saussure. The Alpine Botanical Garden Saussurea, located at Pavillon du Mont Fréty, first station for the Skyway Monte Bianco cable car, in Courmayeur, Aosta Valley, is named after it.