| Spiraea acuminata Douglas ex Hook. | Unresolved |  | TRO | 
	
		| Spiraea aemiliana C.K. Schneid. | Synonym |  | TRO | 
	
		| Spiraea aemulans Rehder | Synonym |  | TRO | 
	
		| Spiraea alaschanica Y.Z. Zhao & T.J. Wang | Accepted |  | TRO | 
	
		| Spiraea alba var. latifolia (Aiton) H.E. Ahles | Synonym |  | TRO | 
	
		| Spiraea alba var. latifolia (Aiton) Dippel | Synonym |  | TRO | 
	
		| Spiraea alba var. latifolia (Aiton) B. Boivin | Unresolved |  | TRO | 
	
		| Spiraea alba var. septentrionalis (Fernald) Fosberg | Unresolved |  | TRO | 
	
		| Spiraea alpina Pall. | Accepted |  | TRO | 
	
		| Spiraea alpina var. dahurica Rupr. | Synonym |  | TRO | 
	
		| Spiraea altaica Pall. | Synonym |  | TRO | 
	
		| Spiraea altaiensis Laxm. | Synonym |  | TRO | 
	
		| Spiraea amena Raf. | Unresolved |  | TRO | 
	
		| Spiraea amurensis Maxim. | Synonym |  | TRO | 
	
		| Spiraea angulata Fritsch ex C.K. Schneid. | Synonym |  | TRO | 
	
		| Spiraea angustiloba Turcz. | Synonym |  | TRO | 
	
		| Spiraea anomala Batalin | Accepted |  | TRO | 
	
		| Spiraea aquilegiifolia Pall. | Accepted |  | TRO | 
	
		| Spiraea aquilegiifolia var. vanhouttei Briot | Synonym |  | TRO | 
	
		| Spiraea arborea (C.K. Schneid.) Bean | Synonym |  | TRO | 
	
		| Spiraea arborea var. glabrata (Rehder) Bean | Synonym |  | TRO | 
	
		| Spiraea arbuscula Greene | Unresolved |  | TRO | 
	
		| Spiraea arcuata Hook. f. | Accepted |  | TRO | 
	
		| Spiraea arenaria Y.Z. Zhao & T.J. Wang | Synonym |  | TRO | 
	
		| Spiraea argentea L. f. | Synonym |  | TRO | 
	
		| Spiraea argentea Benth. | Synonym |  | TRO | 
	
		| Spiraea ariifolia Sm. | Synonym |  | TRO | 
	
		| Spiraea ariifolia var. discolor (Pursh) Torr. & A. Gray | Synonym |  | TRO | 
	
		| Spiraea aruncus L. | Synonym |  | TRO | 
	
		| Spiraea atemnophylla H. Lév. | Synonym |  | TRO | 
	
		| Spiraea baldschuanica B. Fedtsch. | Unresolved |  | TRO | 
	
		| Spiraea barbata Wall. | Unresolved |  | TRO | 
	
		| Spiraea beauverdiana C.K. Schneid. | Accepted |  | TRO | 
	
		| Spiraea beauverdiana var. stevenii C.K. Schneid. | Synonym |  | TRO | 
	
		| Spiraea bella Sims | Accepted |  | TRO | 
	
		| Spiraea bethlehemensis hort. ex K. Koch | Unresolved |  | TRO | 
	
		| Spiraea betulifolia Pall. | Unresolved |  | TRO | 
	
		| Spiraea betulifolia subsp. aemiliana HARA | Synonym |  | TRO | 
	
		| Spiraea betulifolia var. aemiliana Koidz. | Synonym |  | TRO | 
	
		| Spiraea betulifolia var. corymbosa (Raf.) S. Watson | Synonym |  | TRO | 
	
		| Spiraea betulifolia var. corymbosa (Raf.) Voss | Synonym |  | TRO | 
	
		| Spiraea betulifolia subsp. corymbosa (Raf.) Roy L. Taylor & MacBryde | Unresolved |  | TRO | 
	
		| Spiraea betulifolia var. lucida (Douglas ex Greene) C.L. Hitchc. | Synonym |  | TRO | 
	
		| Spiraea betulifolia subsp. lucida (Douglas ex Greene) Roy L. Taylor & MacBryde | Unresolved |  | TRO | 
	
		| Spiraea betulifolia var. rosea A. Gray | Synonym |  | TRO | 
	
		| Spiraea billiardii Hort ex K. Koch | Unresolved |  | TRO | 
	
		| Spiraea blumei G. Don | Accepted |  | TRO | 
	
		| Spiraea blumei var. blumei | Accepted |  | TRO | 
	
		| Spiraea blumei var. hirsuta Hemsl. | Synonym |  | TRO | 
	
		| Spiraea blumei var. maximowiczii (C.K. Schneid.) Dunn | Synonym |  | TRO | 
	
		| Spiraea blumei var. rotundifolia Hemsl. | Synonym |  | TRO | 
	
		| Spiraea bodinieri H. Lév. | Synonym |  | TRO | 
	
		| Spiraea bodinieri var. concolor H. Lév. | Synonym |  | TRO | 
	
		| Spiraea boursieri Carrière | Synonym |  | TRO | 
	
		| Spiraea bracteata Raf. | Unresolved |  | TRO | 
	
		| Spiraea caespitosa Nutt. | Synonym |  | TRO | 
	
		| Spiraea caespitosa var. elatior S. Watson | Synonym |  | TRO | 
	
		| Spiraea calcicola W.W. Sm. | Accepted |  | TRO | 
	
		| Spiraea californica Torr. | Synonym |  | TRO | 
	
		| Spiraea callosa Thunb. | Synonym |  | TRO | 
	
		| Spiraea callosa var. glabra Regel | Synonym |  | TRO | 
	
		| Spiraea camtschatica Pall. | Synonym |  | TRO | 
	
		| Spiraea camtschatica var. himalensis Lindl. | Synonym |  | TRO | 
	
		| Spiraea camtschatica var. occidentalis (S. Watson) Wenz. | Synonym |  | TRO | 
	
		| Spiraea canescens D. Don | Accepted |  | TRO | 
	
		| Spiraea canescens var. canescens | Accepted |  | TRO | 
	
		| Spiraea canescens var. glabra Hook. f. | Synonym |  | TRO | 
	
		| Spiraea canescens var. glaucophylla Franch. | Accepted |  | TRO | 
	
		| Spiraea canescens var. myrtifolia Zabel | Synonym |  | TRO | 
	
		| Spiraea canescens var. oblanceolata Rehder | Synonym |  | TRO | 
	
		| Spiraea canescens var. sulphurea Batalin | Synonym |  | TRO | 
	
		| Spiraea cantoniensis Lour. | Accepted |  | TRO | 
	
		| Spiraea cantoniensis var. cantoniensis | Accepted |  | TRO | 
	
		| Spiraea cantoniensis var. jiangxiensis (Z.X. Yu) L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea capitata Pursh | Unresolved |  | TRO | 
	
		| Spiraea carpinifolia Willd. | Unresolved |  | TRO | 
	
		| Spiraea cavaleriei H. Lév. | Accepted |  | TRO | 
	
		| Spiraea chamaedryfolia L. | Accepted |  | TRO | 
	
		| Spiraea chamaedryfolia var. flexuosa (Fisch. ex Cambess.) Maxim. | Synonym |  | TRO | 
	
		| Spiraea chamaedryfolia var. ulmifolia Maxim. | Synonym |  | TRO | 
	
		| Spiraea chartacea Nakai | Unresolved |  | TRO | 
	
		| Spiraea chinensis Maxim. | Accepted |  | TRO | 
	
		| Spiraea cinerascens Piper | Synonym |  | TRO | 
	
		| Spiraea compsophylla Hand.-Mazz. | Accepted |  | TRO | 
	
		| Spiraea confusa | Unresolved |  | TRO | 
	
		| Spiraea confusa var. sericea (Turcz.) Regel | Synonym |  | TRO | 
	
		| Spiraea convexa Suksd. | Unresolved |  | TRO | 
	
		| Spiraea corymbosa Raf. | Synonym |  | TRO | 
	
		| Spiraea corymbosa var. lucida (Douglas ex Greene) A. Zobel | Synonym |  | TRO | 
	
		| Spiraea crenata L. | Unresolved |  | TRO | 
	
		| Spiraea crenifolia | Unresolved |  | TRO | 
	
		| Spiraea crenifolia var. mongolica Maxim. | Synonym |  | TRO | 
	
		| Spiraea cuneifolia Wall. | Unresolved |  | TRO | 
	
		| Spiraea cuneifolia Borkh. | Unresolved |  | TRO | 
	
		| Spiraea cuneifolia Raf. | Unresolved |  | TRO | 
	
		| Spiraea dahurica (Rupr.) Maxim. | Accepted |  | TRO | 
	
		| Spiraea daochengensis L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea dasyantha Bunge | Accepted |  | TRO | 
	
		| Spiraea decumbens Koch | Unresolved |  | TRO | 
	
		| Spiraea densiflora Nutt. ex Torr. & A. Gray | Accepted |  | TRO | 
	
		| Spiraea densiflora var. splendens (Baumann ex K. Koch) C.L. Hitchc. | Accepted |  | TRO | 
	
		| Spiraea densiflora subsp. splendens (Baumann ex K. Koch) Abrams | Synonym |  | TRO | 
	
		| Spiraea denudata J. Presl & C. Presl | Synonym |  | TRO | 
	
		| Spiraea digitata Willd. | Synonym |  | TRO | 
	
		| Spiraea digitata var. intermedia Glehn | Synonym |  | TRO | 
	
		| Spiraea discolor Pursh | Synonym |  | TRO | 
	
		| Spiraea discolor var. ariifolia (Sm.) S. Watson | Synonym |  | TRO | 
	
		| Spiraea discolor var. dumosa S. Watson | Synonym |  | TRO | 
	
		| Spiraea discolor var. glabrescens Greenm. | Synonym |  | TRO | 
	
		| Spiraea douglasii Hook. | Accepted |  | TRO | 
	
		| Spiraea douglasii var. menziesii (Hook.) C. Presl | Synonym |  | TRO | 
	
		| Spiraea douglasii subsp. menziesii (Hook.) Calder & Roy L. Taylor | Accepted |  | TRO | 
	
		| Spiraea douglasii f. menziesii (Hook.) Voss | Synonym |  | TRO | 
	
		| Spiraea douglasii var. roseata (Rydb.) C.L. Hitchc. | Accepted |  | TRO | 
	
		| Spiraea dumosa Nutt. ex Torr. & A. Gray | Synonym |  | TRO | 
	
		| Spiraea elegans Pojark. | Accepted |  | TRO | 
	
		| Spiraea esquirolii H. Lév. | Synonym |  | TRO | 
	
		| Spiraea ferganensis Pojark. | Unresolved |  | TRO | 
	
		| Spiraea ferruginea Raf. | Unresolved |  | TRO | 
	
		| Spiraea filipendula L. | Unresolved |  | TRO | 
	
		| Spiraea fissa Lindl. | Synonym |  | TRO | 
	
		| Spiraea flexuosa Fisch. ex Cambess. | Accepted |  | TRO | 
	
		| Spiraea flexuosa var. flexuosa | Accepted |  | TRO | 
	
		| Spiraea formosana Hayata | Accepted |  | TRO | 
	
		| Spiraea formosana var. brevistyla Hayata | Synonym |  | TRO | 
	
		| Spiraea fortunei Planch. | Synonym |  | TRO | 
	
		| Spiraea fritschiana C.K. Schneid. | Accepted |  | TRO | 
	
		| Spiraea fritschiana var. angulata (Fritsch ex C.K. Schneid.) Rehder | Accepted |  | TRO | 
	
		| Spiraea fritschiana var. fritschiana | Accepted |  | TRO | 
	
		| Spiraea fritschiana var. latifolia Liou | Synonym |  | TRO | 
	
		| Spiraea fritschiana var. villosa Y.Q. Zhu & D.K. Zang | Synonym |  | TRO | 
	
		| Spiraea fulvescens Rehder | Synonym |  | TRO | 
	
		| Spiraea gemmata Zabel | Synonym |  | TRO | 
	
		| Spiraea glomerata Raf. | Unresolved |  | TRO | 
	
		| Spiraea hailarensis Liou | Accepted |  | TRO | 
	
		| Spiraea hartwegiana Rydb. | Accepted |  | TRO | 
	
		| Spiraea hayatana H.L. Li | Accepted |  | TRO | 
	
		| Spiraea helleri Rydb. | Unresolved |  | TRO | 
	
		| Spiraea hendersonii (Canby) Piper | Synonym |  | TRO | 
	
		| Spiraea henryi Hemsl. | Accepted |  | TRO | 
	
		| Spiraea henryi var. glabrata T.T. Yu & L.T. Lu | Synonym |  | TRO | 
	
		| Spiraea henryi var. omeiensis T.T. Yu | Accepted |  | TRO | 
	
		| Spiraea heterophylla Raf. | Unresolved |  | TRO | 
	
		| Spiraea hingshanensis T.T. Yu & L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea hirsuta (Hemsl.) C.K. Schneid. | Accepted |  | TRO | 
	
		| Spiraea hirsuta var. hirsuta | Accepted |  | TRO | 
	
		| Spiraea hirsuta var. rotundifolia (Hemsl.) Rehder | Accepted |  | TRO | 
	
		| Spiraea × hitchcockii W.J. Hess & Stoynoff | Unresolved |  | TRO | 
	
		| Spiraea holorhodantha H. Lév. | Synonym |  | TRO | 
	
		| Spiraea humilis Pojark. | Accepted |  | TRO | 
	
		| Spiraea hydrophila Suksd. | Unresolved |  | TRO | 
	
		| Spiraea hypericifolia L. | Accepted |  | TRO | 
	
		| Spiraea hypericifolia var. hupehensis Rehder | Synonym |  | TRO | 
	
		| Spiraea hypericifolia var. thalictroides Ledeb. | Synonym |  | TRO | 
	
		| Spiraea idahoensis A. Nelson | Unresolved |  | TRO | 
	
		| Spiraea incisa Thunb. | Synonym |  | TRO | 
	
		| Spiraea japonica L. f. | Unresolved |  | TRO | 
	
		| Spiraea japonica (L.) Desv. | Accepted |  | TRO | 
	
		| Spiraea japonica var. acuminata Franch. | Accepted |  | TRO | 
	
		| Spiraea japonica var. formosana (Hayata) Masam. | Synonym |  | TRO | 
	
		| Spiraea japonica var. fortunei (Planch.) Rehder | Accepted |  | TRO | 
	
		| Spiraea japonica var. fortunei Koidz. | Synonym |  | TRO | 
	
		| Spiraea japonica var. glabra (Regel) Koidz. | Accepted |  | TRO | 
	
		| Spiraea japonica var. japonica | Accepted |  | TRO | 
	
		| Spiraea japonica var. morrisonicola (Hayata) Kitam. | Synonym |  | TRO | 
	
		| Spiraea jiangxiensis Z.X. Yu | Synonym |  | TRO | 
	
		| Spiraea kamtschatica Maxim. | Unresolved |  | TRO | 
	
		| Spiraea kirilowii Regel | Synonym |  | TRO | 
	
		| Spiraea kwangsiensis T.T. Yu | Accepted |  | TRO | 
	
		| Spiraea kweichowensis T.T. Yu & L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea laeta Rehder | Accepted |  | TRO | 
	
		| Spiraea laevigata L. | Synonym |  | TRO | 
	
		| Spiraea lanceolata Comm. ex Poir. | Unresolved |  | TRO | 
	
		| Spiraea lasiocarpa Kar. & Kir. | Unresolved |  | TRO | 
	
		| Spiraea latifolia (Aiton) Borkh. | Synonym |  | TRO | 
	
		| Spiraea latifolia var. septentrionalis Fernald | Synonym |  | TRO | 
	
		| Spiraea laucheana Koehne | Synonym |  | TRO | 
	
		| Spiraea lichiangensis W.W. Sm. | Accepted |  | TRO | 
	
		| Spiraea lindleyana Wall. | Unresolved |  | TRO | 
	
		| Spiraea litwinowii Dobrocz. | Unresolved |  | TRO | 
	
		| Spiraea lobata Gronov. ex Jacq. | Synonym |  | TRO | 
	
		| Spiraea lobulata T.T. Yu & L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea longigemmis Maxim. | Accepted |  | TRO | 
	
		| Spiraea lucida Douglas ex Greene | Synonym |  | TRO | 
	
		| Spiraea lucida var. rosea (A. Gray) Greene | Unresolved |  | TRO | 
	
		| Spiraea mairei H. Lév. | Synonym |  | TRO | 
	
		| Spiraea martini H. Lév. | Accepted |  | TRO | 
	
		| Spiraea martini var. martini | Accepted |  | TRO | 
	
		| Spiraea maximowicziana C.K. Schneid. | Synonym |  | TRO | 
	
		| Spiraea media Schmidt | Accepted |  | TRO | 
	
		| Spiraea media subsp. polonica Dostál | Synonym |  | TRO | 
	
		| Spiraea media var. sericea (Turcz.) Maxim. | Synonym |  | TRO | 
	
		| Spiraea menziesii Hook. | Synonym |  | TRO | 
	
		| Spiraea menziesii var. pyramidata (91+(pro sp.)+) Piper | Unresolved |  | TRO | 
	
		| Spiraea mexicana Schiede ex Regel | Synonym |  | TRO | 
	
		| Spiraea micrantha Hook. f. | Unresolved |  | TRO | 
	
		| Spiraea microgyna Nakai | Unresolved |  | TRO | 
	
		| Spiraea microphylla H. Lév. | Synonym |  | TRO | 
	
		| Spiraea millefolium Torr. | Synonym |  | TRO | 
	
		| Spiraea miyabei Koidz. | Accepted |  | TRO | 
	
		| Spiraea mollifolia Rehder | Accepted |  | TRO | 
	
		| Spiraea mongolica Maxim. | Accepted |  | TRO | 
	
		| Spiraea mongolica var. mongolica | Accepted |  | TRO | 
	
		| Spiraea mongolica var. pubescens Y.Z. Zhao & T.J. Wang | Synonym |  | TRO | 
	
		| Spiraea mongolica var. tomentulosa T.T. Yu | Accepted |  | TRO | 
	
		| Spiraea monogyna Torr. | Unresolved |  | TRO | 
	
		| Spiraea morrisonicola Hayata | Accepted |  | TRO | 
	
		| Spiraea muliensis T.T. Yu & L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea myrtilloides Rehder | Accepted |  | TRO | 
	
		| Spiraea myrtilloides var. myrtilloides | Accepted |  | TRO | 
	
		| Spiraea nervosa Franch. & Sav. | Synonym |  | TRO | 
	
		| Spiraea ningshiaensis T.T. Yu & L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea nishimurae Kitag. | Accepted |  | TRO | 
	
		| Spiraea northcraftii I.M. Johnst. | Synonym |  | TRO | 
	
		| Spiraea obovata Raf. | Unresolved |  | TRO | 
	
		| Spiraea obtusa Nakai | Synonym |  | TRO | 
	
		| Spiraea occidentalis S. Watson | Synonym |  | TRO | 
	
		| Spiraea opulifolia L. | Synonym |  | TRO | 
	
		| Spiraea opulifolia var. pauciflora Torr. & A. Gray | Synonym |  | TRO | 
	
		| Spiraea opulifolia var. tomentella Ser. | Synonym |  | TRO | 
	
		| Spiraea ostryfolia Raf. | Unresolved |  | TRO | 
	
		| Spiraea ouensanensis H. Lév. | Synonym |  | TRO | 
	
		| Spiraea ovalis Rehder | Accepted |  | TRO | 
	
		| Spiraea palmata Pall. | Synonym |  | TRO | 
	
		| Spiraea papillosa Rehder | Accepted |  | TRO | 
	
		| Spiraea parvifolia Benth. | Synonym |  | TRO | 
	
		| Spiraea pauciflora Nutt. ex Torr. & A. Gray | Unresolved |  | TRO | 
	
		| Spiraea pectinata (Pursh) Torr. & A. Gray | Synonym |  | TRO | 
	
		| Spiraea pikoviensis Besser | Unresolved |  | TRO | 
	
		| Spiraea pilosa Franch. | Unresolved |  | TRO | 
	
		| Spiraea polonica BLocki | Accepted |  | TRO | 
	
		| Spiraea prattii C.K. Schneid. | Synonym |  | TRO | 
	
		| Spiraea prostrata Maxim. | Accepted |  | TRO | 
	
		| Spiraea prunifolia Siebold & Zucc. | Accepted |  | TRO | 
	
		| Spiraea prunifolia var. hupehensis (Rehder) Rehder | Accepted |  | TRO | 
	
		| Spiraea prunifolia var. plena C.K. Schneid. | Synonym |  | TRO | 
	
		| Spiraea prunifolia var. prunifolia | Accepted |  | TRO | 
	
		| Spiraea prunifolia var. pseudoprunifolia (Hayata ex Nakai) H.L. Li | Accepted |  | TRO | 
	
		| Spiraea prunifolia var. simpliciflora (Nakai) Nakai | Accepted |  | TRO | 
	
		| Spiraea prunifolia f. simpliciflora Nakai | Synonym |  | TRO | 
	
		| Spiraea pseudocrenata Nakai | Unresolved |  | TRO | 
	
		| Spiraea pseudoprunifolia Hayata ex Nakai | Synonym |  | TRO | 
	
		| Spiraea pubescens Turcz. | Accepted |  | TRO | 
	
		| Spiraea pubescens var. pubescens | Accepted |  | TRO | 
	
		| Spiraea purpurea Hand.-Mazz. | Accepted |  | TRO | 
	
		| Spiraea × pyramidata 91+(pro sp.)+ | Synonym |  | TRO | 
	
		| Spiraea reevesiana Lindl. | Synonym |  | TRO | 
	
		| Spiraea rosea Raf. | Synonym |  | TRO | 
	
		| Spiraea roseata Rydb. | Synonym |  | TRO | 
	
		| Spiraea rosthornii E. Pritz. | Accepted |  | TRO | 
	
		| Spiraea rotundifolia Lindl. | Synonym |  | TRO | 
	
		| Spiraea rubiacea Wall. | Synonym |  | TRO | 
	
		| Spiraea rubra (Hill) Britton | Synonym |  | TRO | 
	
		| Spiraea salicifolia L. | Accepted |  | TRO | 
	
		| Spiraea salicifolia var. humilis HARA | Synonym |  | TRO | 
	
		| Spiraea salicifolia var. latifolia Aiton | Synonym |  | TRO | 
	
		| Spiraea sargentiana Rehder | Accepted |  | TRO | 
	
		| Spiraea schinabecki Zabel | Unresolved |  | TRO | 
	
		| Spiraea schneideriana Rehder | Accepted |  | TRO | 
	
		| Spiraea schochiana Rehder | Accepted |  | TRO | 
	
		| Spiraea septentrionalis (Fernald) Á. Löve & D. Löve | Synonym |  | TRO | 
	
		| Spiraea sericea Turcz. | Accepted |  | TRO | 
	
		| Spiraea siccanea (W.W. Sm.) Rehder | Accepted |  | TRO | 
	
		| Spiraea silvestris Nakai | Synonym |  | TRO | 
	
		| Spiraea simplex Greene | Unresolved |  | TRO | 
	
		| Spiraea simpliciflora (Nakai) Nakai | Synonym |  | TRO | 
	
		| Spiraea sinobrahuica W.W. Sm. | Synonym |  | TRO | 
	
		| Spiraea sinobrahuica var. aridicola W.W. Sm. | Synonym |  | TRO | 
	
		| Spiraea sorbifolia L. | Synonym |  | TRO | 
	
		| Spiraea sororia Penny ex G. Don | Unresolved |  | TRO | 
	
		| Spiraea splendens Baumann ex K. Koch | Synonym |  | TRO | 
	
		| Spiraea stevenii (C.K. Schneid.) Rydb. | Accepted |  | TRO | 
	
		| Spiraea stipulata Muhl. ex Willd. | Synonym |  | TRO | 
	
		| Spiraea subcanescens Rydb. | Unresolved |  | TRO | 
	
		| Spiraea sublobata Hand.-Mazz. | Accepted |  | TRO | 
	
		| Spiraea subvillosa Rydb. | Unresolved |  | TRO | 
	
		| Spiraea tarokoensis Hayata | Accepted |  | TRO | 
	
		| Spiraea teniana Rehder | Accepted |  | TRO | 
	
		| Spiraea teniana var. mairei (H. Lév.) L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea teretiuscula C.K. Schneid. | Accepted |  | TRO | 
	
		| Spiraea thalictroides Pall. | Synonym |  | TRO | 
	
		| Spiraea thibetica Bureau & Franch. | Accepted |  | TRO | 
	
		| Spiraea thunbergii Siebold ex Blume | Accepted |  | TRO | 
	
		| Spiraea thyrsiflora K. Koch | Synonym |  | TRO | 
	
		| Spiraea tianschanica Pojark. | Unresolved |  | TRO | 
	
		| Spiraea tibetica T.T. Yu & L.T. Lu | Synonym |  | TRO | 
	
		| Spiraea tomentosa var. rosea (Raf.) Fernald | Unresolved |  | TRO | 
	
		| Spiraea tomentulosa (T.T. Yu) Y.Z. Zhao | Synonym |  | TRO | 
	
		| Spiraea tortuosa Rehder | Synonym |  | TRO | 
	
		| Spiraea trichocarpa Nakai | Accepted |  | TRO | 
	
		| Spiraea trifoliata L. | Synonym |  | TRO | 
	
		| Spiraea trilobata L. | Accepted |  | TRO | 
	
		| Spiraea ulmaria L. | Synonym |  | TRO | 
	
		| Spiraea ulmifolia Scop. | Accepted |  | TRO | 
	
		| Spiraea uniflora (S. Watson) Piper | Synonym |  | TRO | 
	
		| Spiraea uralensis Franch. | Unresolved |  | TRO | 
	
		| Spiraea uratensis Franch. | Accepted |  | TRO | 
	
		| Spiraea ussuriensis Pojark. | Synonym |  | TRO | 
	
		| Spiraea × vanhouttei (Briot) Carrière | Accepted |  | TRO | 
	
		| Spiraea veitchii Hemsl. | Accepted |  | TRO | 
	
		| Spiraea velutina Franch. | Accepted |  | TRO | 
	
		| Spiraea vestita Wall. ex G. Don | Synonym |  | TRO | 
	
		| Spiraea virgata Franch. | Synonym |  | TRO | 
	
		| Spiraea virginiana Britton | Unresolved |  | TRO | 
	
		| Spiraea wardii W.W. Sm. | Unresolved |  | TRO | 
	
		| Spiraea wilsonii Duthie | Accepted |  | TRO | 
	
		| Spiraea xizangensis L.T. Lu | Accepted |  | TRO | 
	
		| Spiraea yunnanensis Franch. | Accepted |  | TRO | 
	
		| Spiraea yunnanensis var. siccanea W.W. Sm. | Synonym |  | TRO | 
	
		| Spiraea yunnanensis f. tortuosa (Rehder) Rehder | Synonym |  | TRO |