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 |
|---|---|---|---|
| Costus pulverulentus | C.Presl | 72 | documented |
| Costus pictus | D.Don | 53 | documented |
| Costus woodsonii | Maas | 42 | documented |
| Costus laevis | Ruiz & Pav. | 26 | documented |
| Costus scaber | Ruiz & Pav. | 24 | documented |
| Costus montanus | Maas | 20 | documented |
| Costus spiralis | (Jacq.) Roscoe | 19 | documented |
| Costus elegans | Veitch ex J.Dix | 18 | documented |
| Costus comosus | (Jacq.) Roscoe | 17 | documented |
| Costus bracteatus | Rowlee | 13 | documented |
| Costus arabicus | L. | 11 | documented |
| Costus guanaiensis | Rusby | 11 | documented |
| Costus lima | K.Schum. | 7 | documented |
| Costus glaucus | Maas | 6 | documented |
| Costus villosissimus | Jacq. | 6 | documented |
| Costus osae | Maas & H.Maas | 5 | documented |
| Costus dubius | (Afzel.) K.Schum. | 4 | documented |
| Costus atlanticus | E.M.Pessoa & M.Alves | 3 | documented |
| Costus dirzoi | García-Mend. & G.Ibarra | 3 | documented |
| Costus geothyrsus | K.Schum. | 3 | documented |
| Costus leucanthus | Maas | 3 | documented |
| Costus sprucei | Maas | 3 | documented |
| Costus lucanusianus | J.Braun & K.Schum. | 3 | below the evidence gate |
| Costus vargasii | Maas & H.Maas | 2 | below the evidence gate |
| Costus asplundii | (Maas) Maas | 1 | below the evidence gate |
| Costus claviger | Benoist | 1 | below the evidence gate |
| Costus erythrocoryne | K.Schum. | 1 | below the evidence gate |
| Costus giganteus | Welw. ex Ridl. | 1 | below the evidence gate |
| Costus spicatus | (Jacq.) Sw. | 1 | below the evidence gate |
| Costus acanthocephalus | K.Schum. | 0 | below the evidence gate |
| Costus acreanus | (Loes.) Maas | 0 | below the evidence gate |
| Costus acutissimus | Maas & H.Maas | 0 | below the evidence gate |
| Costus adolphi-friderici | Loes. | 0 | below the evidence gate |
| Costus afer | Ker Gawl. | 0 | below the evidence gate |
| Costus albiflos | Maas & H.Maas | 0 | below the evidence gate |
| Costus allenii | Maas | 0 | below the evidence gate |
| Costus amazonicus | (Loes.) J.F.Macbr. | 0 | below the evidence gate |
| Costus asteranthus | Maas & H.Maas | 0 | below the evidence gate |
| Costus aureus | Maas & H.Maas | 0 | below the evidence gate |
| Costus barbatus | Suess. | 0 | below the evidence gate |
| Costus beckii | Maas & H.Maas | 0 | below the evidence gate |
| Costus bicolor | J.Braun & K.Schum. | 0 | below the evidence gate |
| Costus bullatus | Meekiong, Muliati & Ipor | 0 | below the evidence gate |
| Costus chartaceus | Maas | 0 | below the evidence gate |
| Costus chrysocephalus | K.Schum. | 0 | below the evidence gate |
| Costus clemensae | Ridl. | 0 | below the evidence gate |
| Costus cordatus | Maas | 0 | below the evidence gate |
| Costus cupreifolius | Maas | 0 | below the evidence gate |
| Costus curvibracteatus | Maas | 0 | below the evidence gate |
| Costus dendrophilus | K.Schum. | 0 | below the evidence gate |
| Costus dinklagei | K.Schum. | 0 | below the evidence gate |
| Costus eburneus | Meekiong, Muliati & Tawan | 0 | below the evidence gate |
| Costus erythrophyllus | Loes. | 0 | below the evidence gate |
| Costus erythrothyrsus | Loes. | 0 | below the evidence gate |
| Costus fenestralis | Maas & H.Maas | 0 | below the evidence gate |
| Costus fissicalyx | N.R.Salinas, Clavijo & Betancur | 0 | below the evidence gate |
| Costus fortalezae | K.Schum. | 0 | below the evidence gate |
| Costus gabonensis | Koechlin | 0 | below the evidence gate |
| Costus gracillimus | Maas & H.Maas | 0 | below the evidence gate |
| Costus juruanus | K.Schum. | 0 | below the evidence gate |
| Costus kupensis | Maas & H.Maas | 0 | below the evidence gate |
| Costus lasius | Loes. | 0 | below the evidence gate |
| Costus lateriflorus | Baker | 0 | below the evidence gate |
| Costus ledermannii | Loes. | 0 | below the evidence gate |
| Costus ligularis | Baker | 0 | below the evidence gate |
| Costus lilaceus | Maas & H.Maas | 0 | below the evidence gate |
| Costus loangensis | H.Maas & Maas | 0 | below the evidence gate |
| Costus longibracteolatus | Maas | 0 | below the evidence gate |
| Costus louisii | H.Maas & Maas | 0 | below the evidence gate |
| Costus maboumiensis | Pellegr. | 0 | below the evidence gate |
| Costus macranthus | K.Schum. | 0 | below the evidence gate |
| Costus microcephalus | K.Schum. | 0 | below the evidence gate |
| Costus mosaicus | W.Bull | 0 | below the evidence gate |
| Costus muluensis | Meekiong, Ipor & Tawan | 0 | below the evidence gate |
| Costus mulus | Meekiong, Ipor & Tawan | 0 | below the evidence gate |
| Costus nimba | H.Maas & Maas | 0 | below the evidence gate |
| Costus nitidus | Maas | 0 | below the evidence gate |
| Costus oligophyllus | K.Schum. | 0 | below the evidence gate |
| Costus phyllocephalus | K.Schum. | 0 | below the evidence gate |
| Costus plicatus | Maas | 0 | below the evidence gate |
| Costus plowmanii | Maas | 0 | below the evidence gate |
| Costus productus | Gleason ex Maas | 0 | below the evidence gate |
| Costus quasi-appendiculatus | Woodson ex Maas | 0 | below the evidence gate |
| Costus ricus | Maas & H.Maas | 0 | below the evidence gate |
| Costus rumphianus | Valeton ex K.Heyne | 0 | below the evidence gate |
| Costus schlechteri | H.J.P.Winkl. | 0 | below the evidence gate |
| Costus sepacuitensis | Rowlee | 0 | below the evidence gate |
| Costus spectabilis | (Fenzl) K.Schum. | 0 | below the evidence gate |
| Costus stenophyllus | Standl. & L.O.Williams | 0 | below the evidence gate |
| Costus sulfureus | K.Schum. | 0 | below the evidence gate |
| Costus talbotii | Ridl. | 0 | below the evidence gate |
| Costus tappenbeckianus | J.Braun & K.Schum. | 0 | below the evidence gate |
| Costus tappenbeckianus | Braun-Blanq. & K.Schum. | 0 | below the evidence gate |
| Costus tonkinensis | Gagnep. | 0 | below the evidence gate |
| Costus ulei | Loes. | 0 | below the evidence gate |
| Costus varzearum | Maas | 0 | below the evidence gate |
| Costus vinosus | Maas | 0 | below the evidence gate |
| Costus wilsonii | Maas | 0 | below the evidence gate |
| Costus zamoranus | Steyerm. | 0 | below the evidence gate |
| Costus zingiberoides | J.F.Macbr. | 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.