… lemons! Yellow Trillium (T. luteum) has a fragrance as fresh as its flower! Other trilliums have distinctive odors, as well. It’s easy to tell Little Sweet Betsy (T. cuneatum) from Wet Dog Trillium (T. erectum). Why do they have these distinctive odors? To attract pollinators to sip sweet nectar, munch on pollen, or possibly to lay their eggs. Each flower is doing its best to lure the insect or other pollinator that will carry pollen to and from another flower of its species.