
1) Almond willows 2) American dogwoods 3) Basket twigs 4) Basketry pieces 5) Basketry raw materials 6) Basketry willows 7) Dogwoods 8) Flexible willow twigs 9) Golden-yellow dogwoods 10) Hamper composition 11) North american dogwoods 12) Some willows 13) Twiggy willows 14) Twigs for baskets 15) Twigs of willow
Found on
https://www.crosswordclues.com/clue/osiers

Osiers is a species of willow grown for basket-making.
Found on
http://www.probertencyclopaedia.com/browse/BO.HTM
No exact match found.