基本解释adj.似颖的同根派生 英汉例句Perianth segments (3 or)6, in (1 or)2 whorls, free, usually greenish to brownish or blackish, rarely white or yellowish, glumelike. 花被片(3或者)6，（1-）2轮，离生，通常绿色，棕色或黑色，少数白色或黄色，颖状。