As used in ORS § 570.110 to 570.190, unless the context requires otherwise, ‘nursery stock’ includes all trees, shrubs, vines, plants, cuttings, grafts, scions, buds, fruit pits, nuts and other seeds of fruit, forest and ornamental trees and shrubs, both deciduous and evergreen, grown for sale or propagation or planting or collected in the wild, and all flowering bulbs, corms, roots, rooted herbaceous plants, or cuttings used or to be used for ornamental purposes, or cut greenery either cultivated or collected in the wild, used for ornamental purposes, but does not include cut flowers, or such cut greenery as ferns, and foliage grown under glass or other artificial covering.