Pussy Willow (Salix caprea) is associated in my mind with the Easter holiday. It is also called goat willow; a less flattering description but probably more apt. I have found it has the unhappy knack of sowing itself in the seed pans of plants that have a protracted germination process; making a dreadful inconvenience of itself.
This example was photographed beside the Anton river in my home town of Andover, Hampshire.
Weeping willow (probably of hybrid origin) is a far more ornamental plant, long grown in gardens and readily available in garden centres. I must admit I have never grown it – it lends itself to being a centre piece in a lawn but in our unashamedly utilitarian garden this is the rotary clothes drier!
This tree was also photographed beside the Anton.