• Cotoneaster Medikus, 1789
• Cotoneaster acuminatus auct. accepted as Cotoneaster villosulus (Rehder & E.H. Wilson) Flinck & B. Hylmö
• Cotoneaster acuminatus E. Pritz.
• Cotoneaster acuminatus Lindl.
• Cotoneaster acutifolius H.J. Veitch
• Cotoneaster acutifolius Lindl. ex Ledeb. accepted as Cotoneaster lucidus Schltdl.
• Cotoneaster acutifolius Turcz.
• Cotoneaster adpressus Bois
• Cotoneaster aestivalis (Walter) Wenz.
• Cotoneaster affinis auct. accepted as Cotoneaster frigidus Wall. ex Lindl.
• Cotoneaster affinis DC. accepted as Cotoneaster buxifolius Wall. ex Lindl.
• Cotoneaster affinis Hohen. ex Hook. f. (unaccepted)
• Cotoneaster affinis hort. ex Zabel accepted as Cotoneaster frigidus Wall. ex Lindl.
• Cotoneaster affinis Lindl.
• Cotoneaster afghanicus G. Klotz
• Cotoneaster aitchisonii C.K. Schneid.
• Cotoneaster alashanensis J. Fryer & B. Hylmö
• Cotoneaster alatavicus Popov
• Cotoneaster alaunicus Golitsin
• Cotoneaster albokermesinus J. Fryer & B. Hylmö
• Cotoneaster allanderi J. Fryer
• Cotoneaster allochrous Pojark.
• Cotoneaster altaicus J. Fryer & B. Hylmö
• Cotoneaster ambiguus Rehder & E.H. Wilson
• Cotoneaster amoenus E.H. Wilson
• Cotoneaster amphigenus Chatenier
• Cotoneaster angustifolius Franch. accepted as Pyracantha angustifolia (Franch.) C.K. Schneid.
• Cotoneaster angustus (T.T. Yu ex T.T. Yu & K.C. Kuan) G. Klotz
• Cotoneaster annapurnae J. Fryer & B. Hylmö
• Cotoneaster antoninae Juz.
• Cotoneaster apiculatus Rehder & E.H. Wilson
• Cotoneaster apiifolius Medik.
• Cotoneaster applanatus Duthie ex J.H. Veitch
• Cotoneaster arborescens (Elliott) Wenz.
• Cotoneaster arborescens Zabel
• Cotoneaster arbusculus G. Klotz
• Cotoneaster argenteus G. Klotz accepted as Cotoneaster brevirameus Rehder & E.H. Wilson
• Cotoneaster armenus Pojark.
• Cotoneaster arvernensis Gand.
• Cotoneaster ascendens Flinck & B. Hylmö
• Cotoneaster assadii Khat.
• Cotoneaster assamensis G. Klotz
• Cotoneaster astrophoros J. Fryer & E.C. Nelson
• Cotoneaster ataensis J. Fryer & B. Hylmö
• Cotoneaster atlanticus G. Klotz
• Cotoneaster atropurpureus Flinck & B. Hylmö
• Cotoneaster atrovirens J. Fryer & B. Hylmö
• Cotoneaster atuntzensis J. Fryer & B. Hylmö
• Cotoneaster auranticus J. Fryer & B. Hylmö
• Cotoneaster bacillaris Wall.
• Cotoneaster bacillaris Wall. ex Lindl.
• Cotoneaster baenitzii Pax
• Cotoneaster bakeri G. Klotz accepted as Cotoneaster acuminatus Lindl.
• Cotoneaster balticus B. Hylmö & J. Fryer
• Cotoneaster beimashanensis J. Fryer & B. Hylmö
• Cotoneaster bilokonii Grevtsova
• Cotoneaster bisramianus G. Klotz
• Cotoneaster bitahaiensis J. Fryer & B. Hylmö
• Cotoneaster blinii H. Lév. accepted as Photinia blinii (H. Lév.) Rehder
• Cotoneaster bodinieri H. Lév. accepted as Docynia delavayi (Franch.) C.K. Schneid.
• Cotoneaster boisianus G. Klotz
• Cotoneaster borealichinensis (Hurus.) Hurus.
• Cotoneaster borealis Petz. & G. Kirchn.
• Cotoneaster bradyi J. Fryer & E.C. Nelson
• Cotoneaster brandisii G. Klotz
• Cotoneaster brevirameus Rehder & E.H. Wilson
• Cotoneaster brickellii J. Fryer & B. Hylmö
• Cotoneaster browiczii J. Fryer & B. Hylmö
• Cotoneaster bullatus Bois
• Cotoneaster bumthangensis J. Fryer & B. Hylmö
• Cotoneaster burmanicus G. Klotz
• Cotoneaster buxifolius Baker
• Cotoneaster buxifolius Wall.
• Cotoneaster buxifolius Wall. ex Lindl.
• Cotoneaster californicus A. Murray bis
• Cotoneaster calocarpus (Rehder & E.H. Wilson) Flinck & B. Hylmö
• Cotoneaster cambricus J. Fryer & B. Hylmö
• Cotoneaster camillischneideri Pojark.
• Cotoneaster campanulatus J. Fryer & B. Hylmö
• Cotoneaster canescens Vestergr. ex B. Hylmö
• Cotoneaster capsicinus J. Fryer & B. Hylmö
• Cotoneaster cardinalis J. Fryer & B. Hylmö
• Cotoneaster cashmerianus G. Klotz
• Cotoneaster cashmiriensis G. Klotz
• Cotoneaster cavei G. Klotz accepted as Cotoneaster nitidus Jacques
• Cotoneaster chadwellii J. Fryer & B. Hylmö
• Cotoneaster chaffanjonii H. Lév.
• Cotoneaster chailaricus (G. Klotz) Flinck & B. Hylmö
• Cotoneaster chengkangensis T.T. Yu
• Cotoneaster chrysobotrys Hand.-Mazz.
• Cotoneaster chulingensis J. Fryer & B. Hylmö
• Cotoneaster chungtiensis J. Fryer & B. Hylmö
• Cotoneaster cinerascens (Rehder) Flinck & B. Hylmö
• Cotoneaster cinnabarinus Juz.
• Cotoneaster coadunatus J. Fryer & B. Hylmö
• Cotoneaster coccineus Steud.
• Cotoneaster cochleatus (Franch.) G. Klotz
• Cotoneaster cochleatus auct. accepted as Cotoneaster cashmiriensis G. Klotz
• Cotoneaster commixtus (C.K. Schneid.) Flinck & B. Hylmö
• Cotoneaster comptus hort. ex C.K. Schneid. accepted as Cotoneaster frigidus Wall. ex Lindl.