The Lily family is a fairly big one, there's lot's of edible as well as poisonous bulbs within the family. To know them all, you'd have to get a lot of studying under your belt. The most commonly eaten Lily bulb, though, is the Tiger Lily.
Yes it usually grows from the bulb.
The peace lily grows from seed.
An onion, strictly speaking, is a 'bulb' and is a stem.
The Victoria water lily grows in the Amazon rainforest of South America, and it is edible. However, the only edible part of the plant is its seeds, which can be harvested and eaten like popcorn. These can be eaten by people around the globe.
Most Lillies grow from a bulb so they are perennial flowers.
The edible part of the sego lily is the bulb, but be cautious, the sego lily can resemble very toxic flowers.
Leaves.
yes.
It's a plant of the lily family, Allium cepa, and the onion we know as a vegetable is the bulb of this plant.
Yes it usually grows from the bulb.
Lily bulbs and petals tend to be edible. However, stargazer lilies are toxic to cats.
The peace lily grows from seed.
An onion, strictly speaking, is a 'bulb' and is a stem.
A lily will flower in less than a year from planting the bulb.
The only one i know is the trout lily. I've heard it tastes pretty good too!
onion
daikon, a Japaneese radish.