Bulbs.

Usually one stem and one flower per bulb, on alliums and tulips, I would say... but, it does depend on variety.

the only bulbs i,ve tried is anemone de caen which produce multiple flowers per bulb.

there are some multi flowered tulips but the typical ones are single flowered. typically the same qwith alliums.

It depends on the variety. Some are single stemed/single flowered but many species are multi-flowered.

Yup for tulips and alliums the norm. is one flower per stem. Ditto crocus and colchicums. Narcissus, iris, snowdrops, scillas and others can have multiple flowers per stem.

thanks...