As I understand it:
Coniferous trees bear cones as seed pods.
Deciduous trees have leaves and shed them in the autumn.
Coniferous trees have needles, but never completely shed them. Deciduous trees shed all their leaves and grow new ones in spring.
Coniferous trees stay green all year round and are known as evergreens.
Softwood comes from coniferous trees.....hardwood comes from deciduous trees.
Crikey, haven't done this since I was at school....and you don't wan't to know how long ago that was. 