Which species of Waterlily is known for its fragrant white flowers?

Nymphaea odorata is recognized for its fragrant white flowers, making it a notable species among waterlilies. This aquatic plant is not only appreciated for its visual appeal but also for the pleasant aroma emitted by its blossoms. The white flowers typically bloom during the day and can have a strong, sweet fragrance, which is a characteristic feature setting it apart from other waterlily species.

In contrast, Nymphaea mexicana is primarily associated with yellow flowers and does not have the same level of fragrance as Nymphaea odorata. Nuphar species are commonly known as the yellow waterlilies and are distinct from the genus Nymphaea in both appearance and scent, with their flowers lacking the fragrance associated with Nymphaea odorata. Lastly, Ceratophyllum demersum, commonly known as coontail or hornwort, is a submerged aquatic plant and does not produce flowers in the same manner as waterlilies, thereby making it an unlikely candidate when considering fragrant flowering species.

Thus, Nymphaea odorata is clearly distinguished by its characteristic fragrant white flowers, aligning perfectly with the details sought in the question.