Nectar
It is very sweet because it has a lot of sugar in it. Plants make nectar to attract pollinating animals. It is made in glands called nectaries. The Nectaries are usually at the bottom of the perianth. This means the animal trying to get the nectar have to touch the parts of the plant that are used for reproduction. By doing this, the animal getting the nectar helps the plants reproduce. Some plants make nectar outside the flower.