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在形形色色的观赏花木或花卉中,有一些种类的花并不美丽动人,而具有观赏价值的却是形态奇特、色彩绚丽,似花非花的苞片。被誉为中国鸽子树的珙桐,花较小,排成圆头状花序生于枝端,花序基部两片乳白色大型叶状苞片,看上去,既象盛开的花朵,又似白鸽舒展着的双翅,有很高的观赏价值。大戟科的虎刺梅(Euphorbia splendens),绿色小花排成聚伞花序,并不引人注目,但花序下的橙红色总苞片却很显眼,往往被误认为是花瓣。紫茉莉科的九重葛(Bougainvillea spectabilis),是
Among all kinds of ornamental plants or flowers, some kinds of flowers are not beautiful and beautiful, but the ornamental value is strangely shaped, colorful and non-flowering bracts. The Davidia involucrata, known as the Chinese pigeon tree, has smaller flowers and is arranged in a round head. Inflorescences are two large, white-leafed bracts at the base of the inflorescence. They look like both blooming flowers and white doves The wings, a high ornamental value. The Euphorbia splendens, Euphorbia splendens, of Euphorbiaceae, are not conspicuous in the arrangement of green flowers, but the involucral bracts are conspicuous and often mistaken for petals. Bougainvillea spectabilis, of the jasmine branch