Willows are dioecious (Greek: διοικία "two households") which means that it has distinct male and female individual plants. Above the male flowers, which are loved by bees but not on this cold day.
Purple Toothwort, Lathraea clandestina is parasitic on the roots of various trees. Lathraea is Greek for clandestine: you only see it when it flowers. It has no chlorophyll, has no green leaves and doesn't photosynthesise. Bumblebees visit the flowers but none was observed on this day.