These are almond tree flowers.There are bitter almonds and sweet
almonds here; the bitter usually bloom first, I believe. Because they are
hardier but not tasy, bitter almonds are often used as graft trees: buds
of sweet almond are grafted onto bitter almond hosts. Thus you get sweet
almonds from a hardy tree. Folks here eat almonds as most of us know them,
but also the green nuts before they're mature. These fuzzy green snacks
are slightly bitter but good especially with salt.