Plant A
Plant C
Plant B
Plant D
Plant A is Answer Asplenium x sarniense (Guernsey Spleenwort)
Plant B is Answer Salix x multinervis (Hybrid Willow)
Plant C is Answer x Asplenophyllitis microdon (The Guernsey Fern)
Plant D is Answer Salix x laurina (Laurel-leaved Willow)