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 |
|---|---|---|---|
| Maerua afra | (DC.) Pax | 107 | documented |
| Maerua schinzii | Pax | 27 | documented |
| Maerua parvifolia | Pax | 25 | documented |
| Maerua rosmarinoides | (Sond.) Gilg & Gilg-Ben. | 23 | documented |
| Maerua crassifolia | Forssk. | 14 | documented |
| Maerua racemulosa | (DC.) Gilg & Gilg-Ben. | 12 | documented |
| Maerua nervosa | (Hochst.) Oliv. | 10 | documented |
| Maerua angolensis | DC. | 8 | documented |
| Maerua juncea | Pax | 8 | documented |
| Maerua edulis | (Gilg & Gilg-Ben.) DeWolf | 7 | documented |
| Maerua filiformis | Drake | 3 | documented |
| Maerua apetala | (B.Heyne ex Roth) M.Jacobs | 3 | below the evidence gate |
| Maerua gilgii | Schinz | 3 | below the evidence gate |
| Maerua subcordata | (Gilg) DeWolf | 2 | below the evidence gate |
| Maerua acuminata | Oliv. | 0 | below the evidence gate |
| Maerua aethiopica | (Fenzl) Oliv. | 0 | below the evidence gate |
| Maerua andradae | Wild | 0 | below the evidence gate |
| Maerua arenaria | Hook.f. & Thomson | 0 | below the evidence gate |
| Maerua baillonii | Hadj-Moust. | 0 | below the evidence gate |
| Maerua boranensis | Chiov. | 0 | below the evidence gate |
| Maerua brevipetiolata | Killick | 0 | below the evidence gate |
| Maerua brunnescens | Wild | 0 | below the evidence gate |
| Maerua bussei | (Gilg & Gilg-Ben.) R.Wilczek | 0 | below the evidence gate |
| Maerua buxifolia | (Welw. ex Oliv.) Gilg & Gilg-Ben. | 0 | below the evidence gate |
| Maerua calantha | Gilg | 0 | below the evidence gate |
| Maerua candida | Gilg | 0 | below the evidence gate |
| Maerua cylindrocarpa | Hadj-Moust. | 0 | below the evidence gate |
| Maerua decumbens | (Brongn.) DeWolf | 0 | below the evidence gate |
| Maerua denhardtiorum | Gilg | 0 | below the evidence gate |
| Maerua descampsii | De Wild. | 0 | below the evidence gate |
| Maerua dewaillyi | Aubrév. & Pellegr. | 0 | below the evidence gate |
| Maerua duchesnei | (De Wild.) F.White | 0 | below the evidence gate |
| Maerua elegans | R.Wilczek | 0 | below the evidence gate |
| Maerua emini | Pax | 0 | below the evidence gate |
| Maerua endlichii | Gilg & Gilg-Ben. | 0 | below the evidence gate |
| Maerua erlangeriana | Gilg & Gilg-Ben. | 0 | below the evidence gate |
| Maerua friesii | Gilg & Gilg-Ben. | 0 | below the evidence gate |
| Maerua gilgiana | De Wild. | 0 | below the evidence gate |
| Maerua gillettii | Kers | 0 | below the evidence gate |
| Maerua glauca | Chiov. | 0 | below the evidence gate |
| Maerua grantii | Oliv. | 0 | below the evidence gate |
| Maerua holstii | Pax | 0 | below the evidence gate |
| Maerua homblei | De Wild. | 0 | below the evidence gate |
| Maerua humbertii | Hadj-Moust. | 0 | below the evidence gate |
| Maerua intricata | Kers | 0 | below the evidence gate |
| Maerua kaessneri | Gilg & Gilg-Ben. | 0 | below the evidence gate |
| Maerua kaokoensis | Swanepoel | 0 | below the evidence gate |
| Maerua kirkii | (Oliv.) F.White | 0 | below the evidence gate |
| Maerua koratensis | Srisanga & Watthana | 0 | below the evidence gate |
| Maerua macrantha | Gilg | 0 | below the evidence gate |
| Maerua mendesii | J.A.Abreu, E.S.Martins & Catarino | 0 | below the evidence gate |
| Maerua mungaii | Beentje | 0 | below the evidence gate |
| Maerua nana | R.A.Graham ex Polhill | 0 | below the evidence gate |
| Maerua nuda | Scott Elliot | 0 | below the evidence gate |
| Maerua oblongifolia | (Forssk.) A.Rich. | 0 | below the evidence gate |
| Maerua paniculata | Wild | 0 | below the evidence gate |
| Maerua pintobastoae | J.A.Abreu, E.S.Martins & Catarino | 0 | below the evidence gate |
| Maerua polyandra | R.A.Graham | 0 | below the evidence gate |
| Maerua prittwitzii | Gilg & Gilg-Ben. | 0 | below the evidence gate |
| Maerua pseudopetalosa | (Gilg & Gilg-Ben.) DeWolf | 0 | below the evidence gate |
| Maerua puccionii | Chiov. | 0 | below the evidence gate |
| Maerua purpurascens | Thulin | 0 | below the evidence gate |
| Maerua robynsii | R.Wilczek | 0 | below the evidence gate |
| Maerua salicifolia | Wild | 0 | below the evidence gate |
| Maerua scandens | (Klotzsch) Müll.Berol. ex B.D.Jacks. | 0 | below the evidence gate |
| Maerua schliebenii | Gilg-Ben. | 0 | below the evidence gate |
| Maerua sessiliflora | Gilg | 0 | below the evidence gate |
| Maerua siamensis | (Kurz) Pax | 0 | below the evidence gate |
| Maerua somalensis | Pax | 0 | below the evidence gate |
| Maerua triphylla | A.Rich. | 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.