Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Clethra alnifolia | L. | 1,125 | documented |
| Clethra acuminata | Michx. | 109 | documented |
| Clethra arborea | Aiton | 71 | documented |
| Clethra mexicana | DC. | 56 | documented |
| Clethra barbinervis | Siebold & Zucc. | 55 | documented |
| Clethra tomentosa | Lam. | 42 | documented |
| Clethra fimbriata | Kunth | 31 | documented |
| Clethra fagifolia | Kunth | 23 | documented |
| Clethra rosei | Britton | 22 | documented |
| Clethra purpusii | L.M.González | 10 | documented |
| Clethra scabra | Pers. | 9 | documented |
| Clethra suaveolens | Turcz. | 8 | documented |
| Clethra lanata | M.Martens & Galeotti | 7 | documented |
| Clethra rugosa | Steyerm. | 7 | documented |
| Clethra hartwegii | Britton | 6 | documented |
| Clethra vicentina | Standl. | 4 | documented |
| Clethra ferruginea | (Ruiz & Pav.) Link ex Spreng. | 3 | documented |
| Clethra chiapensis | L.M.González | 2 | below the evidence gate |
| Clethra oleoides | L.O.Williams | 2 | below the evidence gate |
| Clethra repanda | Turcz. | 2 | below the evidence gate |
| Clethra × parvifolia | Lundell | 0 | below the evidence gate |
| Clethra albertinae | L.M.González | 0 | below the evidence gate |
| Clethra alcoceri | Greenm. | 0 | below the evidence gate |
| Clethra alexandri | Griseb. | 0 | below the evidence gate |
| Clethra arfakana | Sleumer | 0 | below the evidence gate |
| Clethra bodinieri | H.Lév. | 0 | below the evidence gate |
| Clethra canescens | Reinw. ex Blume | 0 | below the evidence gate |
| Clethra cardenasii | Sleumer | 0 | below the evidence gate |
| Clethra castaneifolia | Meisn. | 0 | below the evidence gate |
| Clethra concordia | D.A.Neill, H.Beltrán & Quizhpe | 0 | below the evidence gate |
| Clethra consimilis | Sleumer | 0 | below the evidence gate |
| Clethra conzattiana | L.M.González | 0 | below the evidence gate |
| Clethra costaricensis | Britton | 0 | below the evidence gate |
| Clethra crispa | Gust. | 0 | below the evidence gate |
| Clethra cubensis | A.Rich. | 0 | below the evidence gate |
| Clethra cuneata | Rusby | 0 | below the evidence gate |
| Clethra delavayi | Franch. | 0 | below the evidence gate |
| Clethra elongata | Rusby | 0 | below the evidence gate |
| Clethra fabri | Hance | 0 | below the evidence gate |
| Clethra fargesii | Franch. | 0 | below the evidence gate |
| Clethra formosa | E.Alfaro & J.F.Morales | 0 | below the evidence gate |
| Clethra fragrans | L.M.González & R.Delgad. | 0 | below the evidence gate |
| Clethra galeottiana | Briq. | 0 | below the evidence gate |
| Clethra gelida | Standl. | 0 | below the evidence gate |
| Clethra guyanensis | Klotzsch ex Meisn. | 0 | below the evidence gate |
| Clethra hendersonii | Sleumer | 0 | below the evidence gate |
| Clethra hirsutovillosa | S.Valencia & Cruz Durán | 0 | below the evidence gate |
| Clethra hondurensis | Britton | 0 | below the evidence gate |
| Clethra javanica | Turcz. | 0 | below the evidence gate |
| Clethra kaipoensis | H.Lév. | 0 | below the evidence gate |
| Clethra kebarensis | Sleumer | 0 | below the evidence gate |
| Clethra licanioides | Standl. & Steyerm. | 0 | below the evidence gate |
| Clethra longispicata | J.J.Sm. | 0 | below the evidence gate |
| Clethra luzmariae | L.M.González | 0 | below the evidence gate |
| Clethra macrophylla | M.Martens & Galeotti | 0 | below the evidence gate |
| Clethra motozintlana | L.M.González | 0 | below the evidence gate |
| Clethra oaxacana | C.W.Ham. | 0 | below the evidence gate |
| Clethra obovata | (Ruiz & Pav.) G.Don | 0 | below the evidence gate |
| Clethra occidentalis | (L.) Kuntze | 0 | below the evidence gate |
| Clethra ovalifolia | Turcz. | 0 | below the evidence gate |
| Clethra pachecoana | Standl. & Steyerm. | 0 | below the evidence gate |
| Clethra pachyphylla | Merr. | 0 | below the evidence gate |
| Clethra papuana | J.J.Sm. | 0 | below the evidence gate |
| Clethra parallelinervia | Gust. | 0 | below the evidence gate |
| Clethra pedicellaris | Turcz. | 0 | below the evidence gate |
| Clethra peruviana | Szyszyl. | 0 | below the evidence gate |
| Clethra petelotii | Dop & Troch.-Marq. | 0 | below the evidence gate |
| Clethra poilanei | Gagnep. ex Dop | 0 | below the evidence gate |
| Clethra pringlei | S.Watson | 0 | below the evidence gate |
| Clethra pulgarensis | Elmer | 0 | below the evidence gate |
| Clethra pyrogena | Sleumer | 0 | below the evidence gate |
| Clethra retivenia | Sleumer | 0 | below the evidence gate |
| Clethra revoluta | (Ruiz & Pav.) Spreng. | 0 | below the evidence gate |
| Clethra secazu | J.F.Morales | 0 | below the evidence gate |
| Clethra skutchii | Standl. & Steyerm. | 0 | below the evidence gate |
| Clethra sleumeriana | K.S.Hao | 0 | below the evidence gate |
| Clethra standleyana | L.M.González | 0 | below the evidence gate |
| Clethra sumatrana | J.J.Sm. | 0 | below the evidence gate |
| Clethra sumbawaensis | Sleumer | 0 | below the evidence gate |
| Clethra symingtonii | Sleumer | 0 | below the evidence gate |
| Clethra tacanensis | Lundell ex L.M.González | 0 | below the evidence gate |
| Clethra talamancana | C.W.Ham. | 0 | below the evidence gate |
| Clethra tomentella | Rolfe ex Dunn | 0 | below the evidence gate |
| Clethra tutensis | C.W.Ham. | 0 | below the evidence gate |
| Clethra tuxtlensis | L.M.González | 0 | below the evidence gate |
| Clethra uleana | Sleumer | 0 | below the evidence gate |
| Clethra zunila | L.M.González | 0 | below the evidence gate |
This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.
So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.