20种校园植物检索表(级次式),,灌木或乔木,叶卵形或卵状披针形,核果长椭圆形,微弯曲,熟时呈紫蓝色,带有白粉·················,常绿灌木或小乔木,枝灰色或灰褐色,有凸起的小瘤状皮孔,花冠白色,后变黄白色,有时微红···,树皮粗糙,每朵花花瓣4片,花黄白色·········,落叶灌木,小枝圆柱形,花瓣倒卵形或近圆形,基部延伸成短爪,猩红色,稀淡红色或白色···················,落叶灌木,幼枝四方形,老枝近圆柱形,灰褐色,花梗极短,被黄色,带蜡质···································,叶面光亮,花序腋生,头状,花密集·····,小枝四棱,具细微皱突,叶倒卵形或椭圆···,树干圆柱形,花无梗,球形,果实阔肾形,有脐·····,叶椭圆形至长椭圆形,果实为坚果·············,花瓣5-12片,栽培种常为重瓣,覆瓦状排列······,离基三出脉,果卵球形或近球形,紫黑色·····,花梗精壮具茸毛,花被倒卵形,厚肉质······,叶面深绿色,具光泽,背淡绿色,无光泽,两面无毛,果球形,成熟时鲜红色································,常绿乔木或灌木、直立或匍匐,球花单生短枝顶端························································,乔木,枝平展、微斜展或微下垂,基部宿存芽鳞向外
20种校园植物检索表 来自淘豆网www.taodocs.com转载请标明出处.