dandelion = lion's tooth? how come?

The word “dandelion” come from the French dente de lion.

The German Loewenzahn seems to bear this out.

Whats the relationship between this flower and a lion’s tooth?

The individual petals are long, thin and pointed, resembling a lion’s canine teeth.

According to my etymology reference, it’s from the leaves being toothed “like a lion”, not the petal.

See here.

Toothed leaves from here too.

“dent de lion” to be exact.

Funnily enough the French word for dandelion is “piss en lit”, which has a parallel in the English dialect word “pissabed”.

Indeed. I recall children in my neighbourhood claiming that picking dandelions would cause you to wet your bed (actually an exaggeration), and you’ll find extract from it being prescribed as a herbal diuretic.

The leaves can be eaten in salads.