1. (noun) korokio, Corokia cotoneaster - a native shrub with alternating spoon-shaped long leaves, silvery white below and bright yellow, star-like flowers. Fruit is bright red to yellow. Has black bark and tangled zigzag branches; Corokia buddleoides - a native shrub with long, narrow, alternating leaves, silvery white below. Bright yellow flowers are star-like and the fruit dark red to black.