silky oak: medium to tall fast-growing tree with orange flowers and feathery bipinnate leaves silky-hairy beneath; eastern Australia
silk oak: any of several Australian timber trees having usually fernlike foliage and mottled wood used in cabinetry and veneering
bletilla striata: Japanese orchid with white-striped leaves and slender erect racemes of rose to magenta flowers; often cultivated; sometimes placed in genus Bletia