Sect. Microdiscus Fed. (Campanulaceae)
组1．沙参组——Sect. Microdiscus Fed. in Fl. URSS 24: 348. 1967, emend. Hong, in Addenda——sect. Platyphyllae (Borb.) Fed. l. c. 361, p. p. ——sect. Pachydiscus Fed. l. c. 370. ——sect. Thyrsanthae (Borb.) Fed. l. c. 364, p. p. (ser. Gmelinianae). ——Campanula sect. hyrsanthae Borb., Magyar. Bot. Lapok. 3: 190. 191. 1904, p. p.
形态特征：茎生叶轮生或互生；花萼裂片钻形至卵形，全缘或有齿；花冠钟状或狭钟状，或漏斗状，口部不收缢；雄蕊远短于花冠，极少稍短于花冠的；花盘环状至筒状，直径超过1毫米；花柱短于花冠，或稍长于花冠，其长不过花冠长的1.3倍。
产地分布：约45种，广布。我国产36种。▽组模式：Adenophora liliifolia (L.) Bess.