本系概述
系1. 多花系 Ser. Multiflori Pojark. in Fl. URSS 9: 329. 1939. emend. Yu, 植物分類學報 8: 218. 1963.——Ser. Racemiflorae Pojark. op. cit. 331.——Sect. II. Chaenopetalum Koehne ser. multiflori Yu in Bull. Brit. Mus. Bot. 1: 137. 1954.
本系有下列7種：
落葉稀半常綠灌木；葉片草質，下面無毛或有絨毛；花瓣白色，在開花時平鋪展開；果實紅色，小核1-2。
下級分類
鈍葉栒子Cotoneaster hebephyllus Diels 鈍葉栒子黃毛變種Cotoneaster hebephyllus Diels var. fulvidus W. W. Sm. 鈍葉栒子灰毛變種Cotoneaster hebephyllus Diels var. incanus W. W. Sm. 鈍葉栒子大果變種Cotoneaster hebephyllus Diels var. majusculus W. W. Sm.
蒙古栒子Cotoneaster mongolicus Pojark.
水栒子Cotoneaster multiflorus Bunge 水栒子紫果變種Cotoneaster multiflorus Bunge var. atropurpureus T. T. Yu 水栒子大果變種Cotoneaster multiflorus Bunge var. calocarpus Rehder & E. H. Wilson 水栒子（原變種）Cotoneaster multiflorus Bunge var. multiflorus
氈毛栒子Cotoneaster pannosus Franch. 氈毛栒子（原變種）Cotoneaster pannosus Franch. var. pannosus 氈毛栒子大葉變種Cotoneaster pannosus Franch. var. robustior W. W. Sm.
華中栒子Cotoneaster silvestrii Pamp.
準噶爾栒子Cotoneaster soongoricus (Regel) Popov
準噶爾栒子（原變種）Cotoneaster soongoricu (Regel) Popov var. soongoricus 準噶爾栒子小果變種Cotoneaster soongoricus (Regel) Popov var. microcarpus (Rehder & E. H. Wilson) Klotz
毛葉水栒子Cotoneaster submultiflorus Popov
1.鈍葉栒子Cotoneaster hebephyllus Diels 鈍葉栒子黃毛變種Cotoneaster hebephyllus Diels var. fulvidus W. W. Sm. 鈍葉栒子灰毛變種Cotoneaster hebephyllus Diels var. incanus W. W. Sm. 鈍葉栒子大果變種Cotoneaster hebephyllus Diels var. majusculus W. W. Sm.
2.蒙古栒子Cotoneaster mongolicus Pojark.
3.水栒子Cotoneaster multiflorus Bunge 水栒子紫果變種Cotoneaster multiflorus Bunge var. atropurpureus T. T. Yu 水栒子大果變種Cotoneaster multiflorus Bunge var. calocarpus Rehder & E. H. Wilson 水栒子（原變種）Cotoneaster multiflorus Bunge var. multiflorus
4.氈毛栒子Cotoneaster pannosus Franch. 氈毛栒子（原變種）Cotoneaster pannosus Franch. var. pannosus 氈毛栒子大葉變種Cotoneaster pannosus Franch. var. robustior W. W. Sm.
5.華中栒子Cotoneaster silvestrii Pamp.
6.準噶爾栒子Cotoneaster soongoricus (Regel) Popov
準噶爾栒子（原變種）Cotoneaster soongoricu (Regel) Popov var. soongoricus 準噶爾栒子小果變種Cotoneaster soongoricus (Regel) Popov var. microcarpus (Rehder & E. H. Wilson) Klotz
7.毛葉水栒子Cotoneaster submultiflorus Popov
