'stalkless' originates from the English word 'stalk' combined with the suffix '-less', where 'stalk' meant 'the main stem of a plant' and '-less' meant 'without'.

'stalk' changed from the Old English word 'stalu' and eventually became the modern English word 'stalk'.

Initially, it meant 'without a stem or stalk', and this meaning has largely remained the same in modern usage.